Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

6167 vulnerabilities reference this CWE, most recent first.

CVE-2026-100863 (GCVE-0-2026-100863)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-30 15:24
VLAI
Title
Heym before 0.0.91 SSRF via image fetching and IPv6 validation
Summary
Heym versions 0.0.90 and earlier contain two server-side request forgery (SSRF) egress gaps, both remediated in app/services/ssrf_guard.py in 0.0.91. First, the LLM image-edit input loader (_load_image_bytes) fetched caller-controlled HTTP/HTTPS URLs with a bare httpx.get, applying only a scheme check and bypassing the egress-pinning HTTP client; because the workflow DSL supports "imageInput": "$userInput.body.imageUrl", a webhook or API caller can choose the fetch target when a workflow author uses that expression, allowing requests to loopback, RFC1918, and cloud metadata endpoints. Second, _is_public_address unwrapped only IPv4-mapped IPv6 addresses, so IPv6 transition forms — the NAT64 well-known prefix 64:ff9b::/96, deprecated IPv4-compatible ::x.x.x.x addresses, and 6to4 (2002::/16, classified as globally routable by Python 3.11.0 through 3.11.9) — could carry loopback, RFC1918, link-local, or cloud-metadata IPv4 destinations past both the initial URL validation and the dial-time IP pin. Version 0.0.91 routes the image loader through guard_http_url and the guarded client, evaluates NAT64 and IPv4-compatible addresses by their embedded IPv4 address, and refuses 64:ff9b:1::/48, 6to4, and Teredo (2001::/32) outright.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:23 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
heymrun heym Affected: 0 , < 0.0.91 (semver)
Unaffected: 0.0.91 (semver)
Create a notification for this product.
Date Public
2026-08-15 00:00
Show details on NVD website
To clipboard 

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CVE-2026-100861 (GCVE-0-2026-100861)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-28 13:38
VLAI
Title
heym before 0.0.105 SSRF via credential-controlled base URLs
Summary
heym before 0.0.105 fails to apply egress guards to integration services that use credential-supplied base URLs, allowing authenticated users to bypass SSRF protections. Attackers can configure credentials pointing to loopback, private, or cloud-metadata addresses and read internal service responses returned as workflow node output.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:38 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
heymrun heym Affected: 0 , < 0.0.105 (semver)
Unaffected: 0.0.105 (semver)
Create a notification for this product.
Date Public
2026-09-03 00:00
Credits
fatihkaratash mbakgun
Show details on NVD website
To clipboard 

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CVE-2026-100859 (GCVE-0-2026-100859)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-30 15:23
VLAI
Title
Heym before 0.0.106 Credential Exfiltration via URL Override
Summary
Heym before 0.0.106 contains a credential exfiltration vulnerability in the POST /api/credentials/test endpoint that allows collaborators with shared credential access to exfiltrate the credential owner's secret. Attackers can override the destination URL in the config parameter to cause the server to send decrypted authentication secrets to attacker-controlled endpoints.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:22 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
heymrun heym Affected: 0 , < 0.0.106 (semver)
Unaffected: 0.0.106 (semver)
Create a notification for this product.
Date Public
2026-09-05 00:00
Credits
roonakyadav mbakgun
Show details on NVD website
To clipboard 

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CVE-2026-100858 (GCVE-0-2026-100858)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-30 15:41
VLAI
Title
heym before 0.0.109 Server-Side Request Forgery via Workflow Nodes
Summary
heym before 0.0.109 contains a server-side request forgery vulnerability in the Slack, Discord, and Crawler workflow nodes. These nodes issue HTTP requests to URLs taken from user-created credentials (webhook_url / flaresolverr_url) using an unguarded HTTP client, bypassing the SSRF egress guard that already protects the HTTP, WebSocket, and MCP nodes; the credential API validates only that the URL is non-empty. Any registered user can create a credential pointing at an internal address and execute a workflow, causing the backend to reach loopback, private, link-local, or cloud-metadata endpoints and return the full response body in the node output (non-blind SSRF).
Severity
7.6 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:41 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
heymrun heym Affected: 0 , < 0.0.109 (semver)
Unaffected: 0.0.109 (semver)
Create a notification for this product.
Date Public
2026-09-12 00:00
Credits
unbengable12 mbakgun
Show details on NVD website
To clipboard 

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CVE-2026-100850 (GCVE-0-2026-100850)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-30 15:54
VLAI
Title
AzuraCast before 0.23.8 SSRF and Local File Read via Remote Playlist
Summary
AzuraCast before 0.23.8 contains a server-side request forgery and local file read vulnerability in the AutoDJ remote playlist fetch (backend/src/Radio/AutoDJ/QueueBuilder.php, getMediaFromRemoteUrl()). A user with the station Media permission can create or update a playlist with source=remote_url and remote_type=playlist whose remote_url points at a file:// path or an internal/loopback/link-local HTTP endpoint. When AutoDJ builds the queue, the backend passes the user-supplied URL directly to file_get_contents() with no scheme allowlist and no private/loopback/metadata IP policy (PHP allow_url_fopen is enabled by default, including in the Docker image). Lines from the fetched resource are parsed as M3U/PLS entries, stored in StationQueue.autodj_custom_uri, and returned by GET /api/station/{station_id}/queue to any user with the Broadcasting permission, disclosing host files readable by the web container (for example /etc/passwd or the application .env) and the bodies of non-blind internal HTTP requests. No patched version was available at the time of publication.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:54 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
AzuraCast AzuraCast Affected: 0 , < 0.23.8 (semver)
Unaffected: 0.23.8 (semver)
    cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-08 00:00
Credits
Alpastx
Show details on NVD website
To clipboard 

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CVE-2026-100849 (GCVE-0-2026-100849)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-28 13:57
VLAI
Title
AzuraCast before 0.23.8 SSRF Filter Bypass via Hostname and Private IPs
Summary
AzuraCast is a self-hosted web radio management suite. In AzuraCast before 0.23.8, the station webhook URL validation in AbstractConnector::getValidUrl() (backend/src/Webhook/Connector/AbstractConnector.php), used by the Generic and Discord webhook connectors, rejects only URLs whose host is a literal link-local IP address (169.254.0.0/16 or fe80::/10). Loopback addresses and RFC1918 private ranges are not rejected, and any non-literal-IP hostname causes the IP parsing call to throw, which skips the check entirely. A user holding only the station-scoped WebHooks permission can therefore configure a webhook pointing at an internal, loopback, or private-network target and cause the server to issue an outbound HTTP POST containing the station's Now Playing data, resulting in server-side request forgery. The PUT /station/{id}/webhook/{id}/test endpoint allows the same low-privileged user to trigger the request on demand. At the time of the advisory no patched version was available.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:57 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
AzuraCast AzuraCast Affected: 0 , < 0.23.8 (semver)
Unaffected: 0.23.8 (semver)
    cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-07 00:00
Show details on NVD website
To clipboard 

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CVE-2026-100848 (GCVE-0-2026-100848)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-09-28 16:38
VLAI
Title
AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL
Summary
AzuraCast (Composer package azuracast/azuracast) before 0.23.8 validates a station's "Remote Relay" URL only for URL syntax and an http/https scheme (Utilities\Urls::parseUserUrl, used by StationRemote::getUrlAsUri) and performs no host or IP address restriction. A user holding only the station-scoped RemoteRelays permission can therefore set a Remote Relay URL pointing at loopback, private-network, or cloud-metadata addresses (e.g. http://127.0.0.1:<port>/ or http://169.254.169.254/latest/meta-data/), and AzuraCast's periodic background Now Playing sync (AbstractRemote::getNowPlayingAsync) will automatically and repeatedly issue HTTP requests to that address, resulting in server-side request forgery against internal resources. This affects the main branch as of commit bcf8754eef3a268ad82c3db4d81f7920c3c28b56 (2026-07-31); no patched version is available at the time of the advisory.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 16:25 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
AzuraCast AzuraCast Affected: 0 , < 0.23.8 (semver)
Unaffected: 0.23.8 (semver)
    cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-07 00:00
Credits
senti-man
Show details on NVD website
To clipboard 

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CVE-2026-100750 (GCVE-0-2026-100750)

Vulnerability from cvelistv5 – Published: 2026-09-28 07:00 – Updated: 2026-09-30 15:16
VLAI
Title
Joomla Extension - regularlabs.com - Arbitrary file read / SSRF in Modules Anywhere 1.5.0 - 9.0.5 for Joomla
Summary
Joomla Extension - regularlabs.com - LFI / SSRF in Modules Anywhere 1.5.0 - 9.0.5 for Joomla - Modules Anywhere Pro lets additional attributes on a module tag replace arbitrary parameters of the selected module. This feature is enabled by default in affected versions. The overrides are applied without checking who authored the content containing the tag. The security effect depends on how the selected module consumes the replaced parameter. Joomla's core Feed module provides a concrete affected path: its rssurl parameter is opened by the server and accepts local file: URLs as well as network URLs.
Severity
8.5 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 11:37 UTC
CWE
  • CWE-918 - Server-Side Request Forgery
Assigner
References
URL Tags
https://www.regularlabs.com/ product
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-100705 (GCVE-0-2026-100705)

Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-26 23:10
VLAI
Title
Kyverno before 1.19.1 SSRF via legacy apiCall service executor
Summary
Kyverno before 1.19.1 is vulnerable to server-side request forgery. The default egress blocklist (169.254.169.254, 169.254.169.253, metadata.google.internal, 127.0.0.0/8, ::1/128) and the scoped-token control were wired only into the new CEL http.Get/Post library and were never applied to the legacy apiCall service executor (pkg/engine/apicall/executor.go) or to the GlobalContextEntry external-API path, which handle every non-CEL context[].apiCall.service call. Because these paths use a plain net/http client with no egress filtering and no validation of the configured service URL, a ClusterPolicy or GlobalContextEntry author — or, where a deployed policy templates the service URL from the admission resource, a lower-privileged resource submitter — can cause Kyverno to issue GET/POST requests to an arbitrary host, including the cloud metadata endpoint, loopback, and any in-cluster service, reading cloud instance credentials and reaching internal endpoints with Kyverno's network position. The executor also unconditionally attaches Kyverno's projected ServiceAccount token to the attacker-chosen destination; the token is audience-scoped, limiting its replay value. Fixed in 1.19.1.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 23:10 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
kyverno kyverno Affected: 0 , < 1.19.1 (semver)
Unaffected: 1.19.1 (semver)
    cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-10 00:00
Credits
ttzero25
Show details on NVD website
To clipboard 

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CVE-2026-100698 (GCVE-0-2026-100698)

Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-30 15:07
VLAI
Title
Adminer before 6.0.2 Privileged-Port SSRF via host_port Regex
Summary
Adminer 5.5.1 through 6.0.1 improperly parses the login 'server' string in the host_port() function in adminer/include/functions.inc.php. The port capture group requires pure digits anchored to the end of the string, so any server value with a non-digit tail fails the regex and falls back to returning the whole string as the host with an empty port. Because the privileged-port restriction in adminer/include/auth.inc.php inspects only the parsed port, the check is skipped, and the mysqli/mysqlnd client subsequently re-parses host:port from the host string and opens a TCP connection. A remote, unauthenticated attacker who can reach the Adminer login page can submit a crafted value such as 127.0.0.1:80/x to make the server initiate TCP connections to arbitrary internal hosts and privileged ports before credentials are validated, enabling server-side request forgery and blind internal port scanning (connection refused vs. handshake vs. timeout acts as a liveness oracle). This is a regression that re-opens the bypass fixed in 5.5.0 (GHSA-58cq-mgw2-38m5). Fixed in 6.0.2.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
5.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:07 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
vrana adminer Affected: 0 , < 6.0.2 (semver)
Unaffected: 6.0.2 (semver)
    cpe:2.3:a:adminer:adminer:*:*:*:*:*:*:*:*
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Date Public
2026-09-07 00:00
Credits
Infinit3i
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              "content": {
                "id": "CVE-2026-100698",
                "options": [
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                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-30T15:07:29.504241Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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            "url": "https://github.com/vrana/adminer/security/advisories/GHSA-rwxg-xph9-82cj"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
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          "product": "adminer",
          "vendor": "vrana",
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          "lang": "en",
          "value": "Adminer 5.5.1 through 6.0.1 improperly parses the login \u0027server\u0027 string in the host_port() function in adminer/include/functions.inc.php. The port capture group requires pure digits anchored to the end of the string, so any server value with a non-digit tail fails the regex and falls back to returning the whole string as the host with an empty port. Because the privileged-port restriction in adminer/include/auth.inc.php inspects only the parsed port, the check is skipped, and the mysqli/mysqlnd client subsequently re-parses host:port from the host string and opens a TCP connection. A remote, unauthenticated attacker who can reach the Adminer login page can submit a crafted value such as 127.0.0.1:80/x to make the server initiate TCP connections to arbitrary internal hosts and privileged ports before credentials are validated, enabling server-side request forgery and blind internal port scanning (connection refused vs. handshake vs. timeout acts as a liveness oracle). This is a regression that re-opens the bypass fixed in 5.5.0 (GHSA-58cq-mgw2-38m5). Fixed in 6.0.2."
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          "name": "GitHub Security Advisory (GHSA-rwxg-xph9-82cj)",
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          "name": "VulnCheck Advisory: Adminer before 6.0.2 Privileged-Port SSRF via host_port Regex",
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-100698",
    "datePublished": "2026-09-26T13:23:55.058Z",
    "dateReserved": "2026-09-26T02:39:50.973Z",
    "dateUpdated": "2026-09-30T15:07:54.104Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

CAPEC-664: Server Side Request Forgery

An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.

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