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18 vulnerabilities by nghttp2
CVE-2026-58055 (GCVE-0-2026-58055)
Vulnerability from nvd – Published: 2026-06-28 01:32 – Updated: 2026-06-29 13:51
VLAI
EPSS
VEX
Title
nghttp2 nghttpx - HTTP Request/Response Smuggling via Upgrade Request with Content-Length
Summary
nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting ambiguous message in the attacker's favor enables HTTP request/response smuggling and cross-client response-queue poisoning.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:51 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/bikini/exploitarium/tree/main/… | exploitthird-party-advisory |
| https://github.com/nghttp2/nghttp2/commit/ab28105… | patch |
| https://www.vulncheck.com/advisories/nghttp2-nght… | third-party-advisory |
Impacted products
Date Public
2026-06-26 00:00
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CVE-2026-27135 (GCVE-0-2026-27135)
Vulnerability from nvd – Published: 2026-03-18 17:59 – Updated: 2026-09-08 08:46
VLAI
EPSS
VEX
Title
nghttp2 Denial of service: Assertion failure due to the missing state validation
Summary
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the application. They might be called internally by the library when it detects the situation that is subject to connection error. Due to the missing internal state validation, the library keeps reading the rest of the data after one of those APIs is called. Then receiving a malformed frame that causes FRAME_SIZE_ERROR causes assertion failure. nghttp2 v1.68.1 adds missing state validation to avoid assertion failure. No known workarounds are available.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-18 18:36 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
55 references
Impacted products
68 products
| Vendor | Product | Version | |
|---|---|---|---|
| nghttp2 | nghttp2 |
Affected:
< 1.68.1
|
|
| Red Hat | JBoss Core Services for RHEL 8 |
Unaffected:
0:1.64.0-3.el8jbcs , < *
(rpm)
cpe:/a:redhat:jboss_core_services:1::el8 |
|
| Red Hat | JBoss Core Services on RHEL 7 |
Unaffected:
0:1.64.0-3.el7jbcs , < *
(rpm)
cpe:/a:redhat:jboss_core_services:1::el7 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
1:22.22.2-1.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:1.64.0-2.el10_1.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
1:24.14.1-2.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
1:22.22.2-2.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:1.64.0-2.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260331102257.6d880403 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260408131901.6d880403 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260414073138.489197e6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:1.33.0-6.el8_10.2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected:
0:1.33.0-3.el8_2.4 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.2 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:1.33.0-4.el8_4.3 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:1.33.0-4.el8_4.3 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:1.33.0-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
0:1.33.0-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
0:1.33.0-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:1.33.0-5.el8_8.2 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:1.33.0-5.el8_8.2 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
9070020260401095228.rhel9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
9070020260402152654.rhel9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
9070020260409073121.rhel9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:1.43.0-6.el9_7.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:1.43.0-5.el9_0.4 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:1.43.0-5.el9_2.4 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
9040020260421133644.rhel9 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:1.43.0-5.el9_4.4 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
9060020260409121057.rhel9 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
9060020260422064119.rhel9 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:1.43.0-6.el9_6.1 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat JBoss Core Services 2.4.62.SP4 |
cpe:/a:redhat:jboss_core_services:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
Unaffected:
412.86.202605271418-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
413.92.202605271328-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
414.92.202605060243-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
415.92.202605060220-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
416.94.202605200242-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.17 |
Unaffected:
417.94.202605112123-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.17::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
Unaffected:
418.94.202605260517-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202605201155-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325677 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325711 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325710 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-3.1777325680 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325709 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325680 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325708 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1779223654 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1779223651 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1780681984 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244559 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244531 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778274666 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244546 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778101579 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778156756 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.68.1-1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1776868961 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868774 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868744 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868772 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868842 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1777459441 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1777454300 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1777459504 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
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"metrics": [
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"other": {
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},
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"Technical Impact": "partial"
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"timestamp": "2026-03-18T18:36:41.841104Z",
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},
{
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}
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"title": "CVE Program Container"
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{
"affected": [
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"cpes": [
"cpe:/a:redhat:jboss_core_services:1::el8"
],
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"product": "JBoss Core Services on RHEL 7",
"vendor": "Red Hat",
"versions": [
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"cpes": [
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"defaultStatus": "affected",
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CVE-2024-28182 (GCVE-0-2024-28182)
Vulnerability from nvd – Published: 2024-04-04 14:41 – Updated: 2025-11-04 18:30
VLAI
EPSS
VEX
Title
Reading unbounded number of HTTP/2 CONTINUATION frames to cause excessive CPU usage
Summary
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-04 17:15 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
10 references
Impacted products
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CVE-2023-44487 (GCVE-0-2023-44487)
Vulnerability from nvd – Published: 2023-10-10 00:00 – Updated: 2026-07-14 12:03Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity
7.5 (High)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-23 20:34 UTC
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
173 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| ietf | http |
Affected:
2.0
cpe:2.3:a:ietf:http:2.0:*:*:*:*:*:*:* |
|
| Siemens | RUGGEDCOM APE1808 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SINEC NMS |
Affected:
0 , < V3.0
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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CVE-2023-35945 (GCVE-0-2023-35945)
Vulnerability from nvd – Published: 2023-07-13 20:41 – Updated: 2024-10-31 16:24
VLAI
EPSS
VEX
Title
Envoy vulnerable to HTTP/2 memory leak in nghttp2 codec
Summary
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-31 16:24 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
| https://github.com/nghttp2/nghttp2/blob/e7f594065… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.26.0, < 1.26.3
Affected: >= 1.25.0, < 1.25.8 Affected: >= 1.24.0, < 1.24.9 Affected: >= 1.23.0, < 1.23.11 |
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CVE-2020-11080 (GCVE-0-2020-11080)
Vulnerability from nvd – Published: 2020-06-03 00:00 – Updated: 2025-06-09 15:45
VLAI
EPSS
VEX
Title
Denial of service in nghttp2
Summary
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-09 15:44 UTC
CWE
- CWE-707 - Improper Enforcement of Message or Data Structure
Assigner
References
14 references
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CVE-2016-1544 (GCVE-0-2016-1544)
Vulnerability from nvd – Published: 2020-02-06 14:20 – Updated: 2024-08-05 23:02
VLAI
EPSS
VEX
Summary
nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion).
Severity
No CVSS data available.
CWE
- Other
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1308461 | x_refsource_CONFIRM |
| https://github.com/nghttp2/nghttp2/releases/tag/v1.7.1 | x_refsource_CONFIRM |
| https://github.com/nghttp2/nghttp2/compare/v1.7.0… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/201612-13 | x_refsource_CONFIRM |
| http://lists.fedoraproject.org/pipermail/package-… | x_refsource_CONFIRM |
| http://lists.fedoraproject.org/pipermail/package-… | x_refsource_CONFIRM |
Date Public
2016-02-15 00:00
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CVE-2018-1000168 (GCVE-0-2018-1000168)
Vulnerability from nvd – Published: 2018-05-08 15:00 – Updated: 2025-06-09 15:47
VLAI
EPSS
VEX
Summary
nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-09 15:47 UTC
CWE
- n/a
- CWE-476 - NULL Pointer Dereference
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0367 | vendor-advisoryx_refsource_REDHAT |
| https://nodejs.org/en/blog/vulnerability/june-201… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/103952 | vdb-entryx_refsource_BID |
| https://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/ | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2019:0366 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Date Public
2018-04-12 00:00
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CVE-2015-8659 (GCVE-0-2015-8659)
Vulnerability from nvd – Published: 2016-01-12 19:00 – Updated: 2024-08-06 08:20
VLAI
EPSS
VEX
Summary
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
15 references
Date Public
2015-12-23 00:00
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"name": "https://support.apple.com/HT206168",
"refsource": "CONFIRM",
"url": "https://support.apple.com/HT206168"
},
{
"name": "[oss-security] 20151223 Re: Use after free in nghttp2",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2015/12/23/10"
},
{
"name": "1035353",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1035353"
},
{
"name": "[oss-security] 20151223 Use after free in nghttp2",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2015/12/23/6"
},
{
"name": "APPLE-SA-2016-03-21-1",
"refsource": "APPLE",
"url": "http://lists.apple.com/archives/security-announce/2016/Mar/msg00000.html"
},
{
"name": "FEDORA-2016-54f85ec6e8",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175085.html"
},
{
"name": "APPLE-SA-2016-03-21-2",
"refsource": "APPLE",
"url": "http://lists.apple.com/archives/security-announce/2016/Mar/msg00001.html"
},
{
"name": "https://nghttp2.org/blog/2015/12/23/nghttp2-v1-6-0/",
"refsource": "CONFIRM",
"url": "https://nghttp2.org/blog/2015/12/23/nghttp2-v1-6-0/"
},
{
"name": "FEDORA-2016-8e13ac5754",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175423.html"
},
{
"name": "APPLE-SA-2016-03-21-3",
"refsource": "APPLE",
"url": "http://lists.apple.com/archives/security-announce/2016/Mar/msg00002.html"
},
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},
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}
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}
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CVE-2026-58055 (GCVE-0-2026-58055)
Vulnerability from cvelistv5 – Published: 2026-06-28 01:32 – Updated: 2026-06-29 13:51
VLAI
EPSS
VEX
Title
nghttp2 nghttpx - HTTP Request/Response Smuggling via Upgrade Request with Content-Length
Summary
nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting ambiguous message in the attacker's favor enables HTTP request/response smuggling and cross-client response-queue poisoning.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:51 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/bikini/exploitarium/tree/main/… | exploitthird-party-advisory |
| https://github.com/nghttp2/nghttp2/commit/ab28105… | patch |
| https://www.vulncheck.com/advisories/nghttp2-nght… | third-party-advisory |
Impacted products
Date Public
2026-06-26 00:00
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CVE-2026-27135 (GCVE-0-2026-27135)
Vulnerability from cvelistv5 – Published: 2026-03-18 17:59 – Updated: 2026-09-08 08:46
VLAI
EPSS
VEX
Title
nghttp2 Denial of service: Assertion failure due to the missing state validation
Summary
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the application. They might be called internally by the library when it detects the situation that is subject to connection error. Due to the missing internal state validation, the library keeps reading the rest of the data after one of those APIs is called. Then receiving a malformed frame that causes FRAME_SIZE_ERROR causes assertion failure. nghttp2 v1.68.1 adds missing state validation to avoid assertion failure. No known workarounds are available.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-18 18:36 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
55 references
Impacted products
68 products
| Vendor | Product | Version | |
|---|---|---|---|
| nghttp2 | nghttp2 |
Affected:
< 1.68.1
|
|
| Red Hat | JBoss Core Services for RHEL 8 |
Unaffected:
0:1.64.0-3.el8jbcs , < *
(rpm)
cpe:/a:redhat:jboss_core_services:1::el8 |
|
| Red Hat | JBoss Core Services on RHEL 7 |
Unaffected:
0:1.64.0-3.el7jbcs , < *
(rpm)
cpe:/a:redhat:jboss_core_services:1::el7 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
1:22.22.2-1.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:1.64.0-2.el10_1.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
1:24.14.1-2.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
1:22.22.2-2.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:1.64.0-2.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260331102257.6d880403 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260408131901.6d880403 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260414073138.489197e6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:1.33.0-6.el8_10.2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected:
0:1.33.0-3.el8_2.4 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.2 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:1.33.0-4.el8_4.3 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:1.33.0-4.el8_4.3 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:1.33.0-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
0:1.33.0-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
0:1.33.0-4.el8_6.3 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:1.33.0-5.el8_8.2 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:1.33.0-5.el8_8.2 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
9070020260401095228.rhel9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
9070020260402152654.rhel9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
9070020260409073121.rhel9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:1.43.0-6.el9_7.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:1.43.0-5.el9_0.4 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:1.43.0-5.el9_2.4 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
9040020260421133644.rhel9 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:1.43.0-5.el9_4.4 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
9060020260409121057.rhel9 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
9060020260422064119.rhel9 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:1.43.0-6.el9_6.1 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat JBoss Core Services 2.4.62.SP4 |
cpe:/a:redhat:jboss_core_services:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
Unaffected:
412.86.202605271418-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
413.92.202605271328-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
414.92.202605060243-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
415.92.202605060220-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
416.94.202605200242-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.17 |
Unaffected:
417.94.202605112123-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.17::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
Unaffected:
418.94.202605260517-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202605201155-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325677 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325711 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325710 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-3.1777325680 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325709 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325680 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325708 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1779223654 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1779223651 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1780681984 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244559 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244531 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778274666 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244546 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778101579 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778156756 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.68.1-1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1776868961 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868774 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868744 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868772 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1776868842 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1777459441 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1777454300 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1777459504 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
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CVE-2024-28182 (GCVE-0-2024-28182)
Vulnerability from cvelistv5 – Published: 2024-04-04 14:41 – Updated: 2025-11-04 18:30
VLAI
EPSS
VEX
Title
Reading unbounded number of HTTP/2 CONTINUATION frames to cause excessive CPU usage
Summary
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-04 17:15 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
10 references
Impacted products
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CVE-2023-44487 (GCVE-0-2023-44487)
Vulnerability from cvelistv5 – Published: 2023-10-10 00:00 – Updated: 2026-07-14 12:03Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity
7.5 (High)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-23 20:34 UTC
CWE
- n/a
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
173 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| ietf | http |
Affected:
2.0
cpe:2.3:a:ietf:http:2.0:*:*:*:*:*:*:* |
|
| Siemens | RUGGEDCOM APE1808 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SINEC NMS |
Affected:
0 , < V3.0
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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CVE-2023-35945 (GCVE-0-2023-35945)
Vulnerability from cvelistv5 – Published: 2023-07-13 20:41 – Updated: 2024-10-31 16:24
VLAI
EPSS
VEX
Title
Envoy vulnerable to HTTP/2 memory leak in nghttp2 codec
Summary
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-31 16:24 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
| https://github.com/nghttp2/nghttp2/blob/e7f594065… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.26.0, < 1.26.3
Affected: >= 1.25.0, < 1.25.8 Affected: >= 1.24.0, < 1.24.9 Affected: >= 1.23.0, < 1.23.11 |
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CVE-2020-11080 (GCVE-0-2020-11080)
Vulnerability from cvelistv5 – Published: 2020-06-03 00:00 – Updated: 2025-06-09 15:45
VLAI
EPSS
VEX
Title
Denial of service in nghttp2
Summary
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-09 15:44 UTC
CWE
- CWE-707 - Improper Enforcement of Message or Data Structure
Assigner
References
14 references
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CVE-2016-1544 (GCVE-0-2016-1544)
Vulnerability from cvelistv5 – Published: 2020-02-06 14:20 – Updated: 2024-08-05 23:02
VLAI
EPSS
VEX
Summary
nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion).
Severity
No CVSS data available.
CWE
- Other
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1308461 | x_refsource_CONFIRM |
| https://github.com/nghttp2/nghttp2/releases/tag/v1.7.1 | x_refsource_CONFIRM |
| https://github.com/nghttp2/nghttp2/compare/v1.7.0… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/201612-13 | x_refsource_CONFIRM |
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CVE-2018-1000168 (GCVE-0-2018-1000168)
Vulnerability from cvelistv5 – Published: 2018-05-08 15:00 – Updated: 2025-06-09 15:47
VLAI
EPSS
VEX
Summary
nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-09 15:47 UTC
CWE
- n/a
- CWE-476 - NULL Pointer Dereference
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0367 | vendor-advisoryx_refsource_REDHAT |
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| http://www.securityfocus.com/bid/103952 | vdb-entryx_refsource_BID |
| https://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/ | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2019:0366 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Date Public
2018-04-12 00:00
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CVE-2015-8659 (GCVE-0-2015-8659)
Vulnerability from cvelistv5 – Published: 2016-01-12 19:00 – Updated: 2024-08-06 08:20
VLAI
EPSS
VEX
Summary
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
15 references
Date Public
2015-12-23 00:00
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