Common Weakness Enumeration
CWE-835
AllowedLoop with Unreachable Exit Condition ('Infinite Loop')
Abstraction: Base · Status: Incomplete
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
1220 vulnerabilities reference this CWE, most recent first.
CVE-2026-68537 (GCVE-0-2026-68537)
Vulnerability from cvelistv5 – Published: 2026-09-17 20:18 – Updated: 2026-09-17 20:23
VLAI
EPSS
VEX
Title
Fulgur: Unbounded page slicing from attacker-controlled CSS height causes denial of service
Summary
`fulgur` converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. In versions prior to 0.19.0, a body-direct child whose CSS-resolved height greatly exceeds the page height was sliced into one fragment per page with no upper bound. This is fixed in version 0.19.0. A `MAX_PAGES` cap bounds the slice loop — halting it even for a `+inf` height — and non-finite layout heights are sanitized so they can no longer drive the loop. As a workaround, validate or constrain untrusted CSS (in particular `height` / `vh` on body-level elements) before passing HTML to fulgur.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 20:23 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fulgur-rs/fulgur/security/advi… | x_refsource_CONFIRM |
| https://github.com/fulgur-rs/fulgur/pull/501 | x_refsource_MISC |
| https://rustsec.org/advisories/RUSTSEC-2026-0200.html | x_refsource_MISC |
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CVE-2026-68523 (GCVE-0-2026-68523)
Vulnerability from cvelistv5 – Published: 2026-09-17 20:23 – Updated: 2026-09-21 21:16
VLAI
EPSS
VEX
Title
Fulgur: Unbounded page slicing from attacker-controlled CSS height causes denial of service
Summary
`fulgur` converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. In versions prior to 0.19.0, a body-direct child whose CSS-resolved height greatly exceeds the page height was sliced into one fragment per page with no upper bound. This is fixed in 0.19.0. A `MAX_PAGES` cap bounds the slice loop — halting it even
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Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 21:15 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/fulgur-rs/fulgur/security/advi… | x_refsource_CONFIRM |
| https://github.com/fulgur-rs/fulgur/pull/501 | x_refsource_MISC |
| https://rustsec.org/advisories/RUSTSEC-2026-0200.html | x_refsource_MISC |
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CVE-2026-68499 (GCVE-0-2026-68499)
Vulnerability from cvelistv5 – Published: 2026-07-30 20:07 – Updated: 2026-07-31 19:19
VLAI
EPSS
VEX
Title
re2: Global `String.prototype.match` with an empty-matchable pattern never advances → infinite loop with unbounded native memory growth (DoS)
Summary
re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2's String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded native memory growth that blocks the event loop and can exhaust host memory. This issue is fixed in 1.25.2.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 19:18 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/uhop/node-re2/security/advisor… | x_refsource_CONFIRM |
| https://github.com/uhop/node-re2/commit/56293de4f… | x_refsource_MISC |
| https://github.com/uhop/node-re2/releases/tag/1.25.2 | x_refsource_MISC |
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CVE-2026-67214 (GCVE-0-2026-67214)
Vulnerability from cvelistv5 – Published: 2026-07-29 13:32 – Updated: 2026-08-19 20:26
VLAI
EPSS
VEX
Title
nanoid Infinite Loop via Negative Size in non-secure module
Summary
nanoid (Nano ID) before 3.3.16 and 5.1.16 contains an infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure). When these functions are given a negative size, the loop counter is decremented from a negative value and never reaches its termination condition, spinning indefinitely and hanging the calling thread. An application that passes an unvalidated, attacker-controlled negative size to these functions is exposed to a denial-of-service condition.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 14:37 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ai/nanoid/releases/tag/5.1.16 | release-notes |
| https://github.com/ai/nanoid/releases/tag/3.3.16 | release-notes |
| https://github.com/ai/nanoid/commit/6ccc67bbaba71… | patch |
| https://www.vulncheck.com/advisories/nanoid-befor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nanoid_project | nanoid |
Affected:
0 , < 5.1.16
(semver)
Unaffected: 5.1.16 (semver) Affected: 0 , < 3.3.16 (semver) Unaffected: 3.3.16 (semver) cpe:2.3:a:nanoid_project:nanoid:*:*:*:*:*:node.js:*:* cpe:2.3:a:nanoid_project:nanoid:*:*:*:*:*:node.js:*:* |
Date Public
2026-06-24 00:00
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CVE-2026-67213 (GCVE-0-2026-67213)
Vulnerability from cvelistv5 – Published: 2026-07-29 13:32 – Updated: 2026-08-10 15:46
VLAI
EPSS
VEX
Title
nanoid before 5.1.6 Infinite Loop via Zero Size in customAlphabet and customRandom
Summary
nanoid (Nano ID) before 5.1.6 contains an infinite loop in the customAlphabet and customRandom functions. When these functions are configured with a size of 0, the internal generation loop never satisfies its exit condition and spins indefinitely, hanging the calling thread. An application that passes an unvalidated, attacker-controlled size of 0 to these functions is exposed to a denial-of-service condition.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 14:41 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ai/nanoid/releases/tag/5.1.6 | release-notes |
| https://github.com/ai/nanoid/commit/cb3626d0f3342… | patch |
| https://www.vulncheck.com/advisories/nanoid-befor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nanoid_project | nanoid |
Affected:
3.0.0 , < 3.3.17
(semver)
Affected: 5.0.0 , < 5.1.6 (semver) cpe:2.3:a:nanoid_project:nanoid:*:*:*:*:*:node.js:*:* |
Date Public
2025-09-22 00:00
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CVE-2026-66730 (GCVE-0-2026-66730)
Vulnerability from cvelistv5 – Published: 2026-07-27 16:55 – Updated: 2026-07-31 18:19 X_Open Source
VLAI
EPSS
VEX
Title
facil.io 0.6.0 - 0.7.6 Infinite Loop DoS via Multipart MIME Body Parser
Summary
facil.io 0.6.0 through 0.7.6 contains a denial-of-service vulnerability in the multipart body parser that allows an unauthenticated remote attacker to permanently freeze worker processes at 100% CPU by sending a multipart/form-data request with a partial closing boundary. The missing progress guard in the parser loop causes http_mime_parse to return 0 bytes consumed without setting done or error flags, causing the calling loop to re-invoke the parser on the same buffer indefinitely, exhausting all workers and permanently disabling the server until manually restarted.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 18:20 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://tpaidakis.com/writeups/facilio-parser-dos/ | technical-descriptionexploit |
| https://github.com/theopaid/Infinite-Loop-DoS-in-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/facil-io-inf… | third-party-advisory |
Impacted products
Date Public
2026-07-24 00:00
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CVE-2026-64834 (GCVE-0-2026-64834)
Vulnerability from cvelistv5 – Published: 2026-07-22 17:06 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 0.6.3 - 8.1.2 Infinite Loop DoS via RTP/ASF Demuxer
Summary
FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer within libavformat/rtpdec_asf.c that allows remote attackers to cause denial of service by sending a crafted RTP/ASF stream. The rtp_asf_fix_header function fails to validate a minimum chunksize when iterating over ASF objects, causing the loop pointer to never advance when a chunksize is smaller than the 24-byte minimum ASF object header size, resulting in CPU exhaustion that denies service to legitimate users.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 15:50 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23663 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/11d5… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-infin… | third-party-advisory |
Impacted products
Date Public
2026-07-02 00:00
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CVE-2026-64611 (GCVE-0-2026-64611)
Vulnerability from cvelistv5 – Published: 2026-07-23 10:46 – Updated: 2026-08-19 13:34
VLAI
EPSS
VEX
Title
Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()
Summary
A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer advertisement, leading to denial of service.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 20:07 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:56965 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-64611 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2502799 | issue-trackingx_refsource_REDHAT |
| https://github.com/OpenPrinting/libcupsfilters/se… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
1:2.0.0-13.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-06-14 08:37
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CVE-2026-63575 (GCVE-0-2026-63575)
Vulnerability from cvelistv5 – Published: 2026-10-02 07:06 – Updated: 2026-10-02 07:06
VLAI
EPSS
VEX
Title
PKCS#12 key derivation loops about 2^32 times on a zero or negative iteration count
Summary
Loop with unreachable exit condition in the PKCS#12 key derivation (Pkcs12ParametersGenerator) in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who can supply a PKCS#12 (PFX) file, or a PKCS#8 encrypted private key that uses a PKCS#12 password-based encryption algorithm, to cause a denial of service through CPU exhaustion via an iteration count of zero or below, because the derivation loop ran until its counter equalled the count, so for such a count it wrapped through about 2^32 iterations before the MAC or the password could be checked. A 75-byte PFX file with a negative MacData iteration count kept Pkcs12Store.Load busy for many minutes.
Severity
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/bcgit/bc-csharp/wiki/CVE-2026-63575 | vendor-advisory |
| https://github.com/bcgit/bc-csharp/commit/0c7a6df… | patch |
| https://github.com/bcgit/bc-csharp/commit/7c0ed15… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Legion of the Bouncy Castle Inc. | bc-csharp |
Affected:
0 , < 2.7.0
(semver)
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CVE-2026-63570 (GCVE-0-2026-63570)
Vulnerability from cvelistv5 – Published: 2026-10-02 07:01 – Updated: 2026-10-02 07:01
VLAI
EPSS
VEX
Title
Pkcs12Store.GetCertificateChain loops forever on cyclic issuer links
Summary
Loop with unreachable exit condition in Pkcs12Store.GetCertificateChain in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who can supply a crafted PKCS#12 file to an application that loads it and requests a key entry's certificate chain to cause a denial of service, in which the call never returns and consumes CPU and memory until an OutOfMemoryException, via certificates whose issuer links form a cycle, for example two certificates whose AuthorityKeyIdentifier extensions each identify the other's public key. This happens because the chain-building loop stops only when no issuer is found or a certificate links to itself, and keeps no record of certificates already visited. The key-identifier links are followed without checking signatures.
Severity
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/bcgit/bc-csharp/wiki/CVE-2026-63570 | vendor-advisory |
| https://github.com/bcgit/bc-csharp/commit/1b8fad0… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Legion of the Bouncy Castle Inc. | bc-csharp |
Affected:
0 , < 2.7.0
(semver)
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.