Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

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.

4613 vulnerabilities reference this CWE, most recent first.

CVE-2026-53446 (GCVE-0-2026-53446)

Vulnerability from cvelistv5 – Published: 2026-07-15 21:10 – Updated: 2026-07-16 12:49
VLAI
Title
Wekan: Server-Side Request Forgery (SSRF) via webhook integration URLs
Summary
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan webhook integration URLs in models/integrations.js are stored from user input and later fetched by server/notifications/outgoing.js without applying the existing validateAttachmentUrl() private-network checks from models/lib/attachmentUrlValidation.js. A board administrator can configure webhook URLs that cause server-side requests to internal or metadata services. This issue is fixed in version 9.32.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Impacted products
Vendor Product Version
wekan wekan Affected: < 9.32
Create a notification for this product.
Show details on NVD website

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CVE-2026-52840 (GCVE-0-2026-52840)

Vulnerability from cvelistv5 – Published: 2026-07-14 15:23 – Updated: 2026-07-15 13:53
VLAI
Title
Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network
Summary
Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, `Caldav::connect_to_server` at `application/controllers/Caldav.php:60` hands the request's `caldav_url` to a Guzzle `REPORT` call without scheme or host validation. A logged-in backend user (admin, provider, or secretary) reaches loopback, RFC1918, and link-local hosts on the deployment's network. The Guzzle exception path returns the upstream status code plus ~120 bytes of response body in the JSON `message` field (`Caldav.php:74-78`), so the SSRF is semi-blind. Version 1.6.0 contains a patch.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Show details on NVD website

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CVE-2026-52805 (GCVE-0-2026-52805)

Vulnerability from cvelistv5 – Published: 2026-06-24 20:22 – Updated: 2026-06-26 03:55
VLAI
Title
Gogs: Migration Redirect Bypass Leads to Internal Repository Theft
Summary
Gogs is an open source self-hosted Git service. Prior to 0.14.3, a Server-Side Request Forgery (SSRF) vulnerability exists in the repository migration functionality. The application validates only the initially submitted URL hostname, but git clone --mirror follows HTTP redirects. An authenticated user can submit a public URL that redirects to a blocked internal endpoint (e.g., 127.0.0.1), importing the internal repository's contents into an attacker-controlled repository. This vulnerability is fixed in 0.14.3.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Impacted products
Vendor Product Version
gogs gogs Affected: < 0.14.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-50552 (GCVE-0-2026-50552)

Vulnerability from cvelistv5 – Published: 2026-06-12 18:51 – Updated: 2026-06-15 15:25
VLAI
Title
Koel: Server-Side Request Forgery (SSRF) in radio station creation due to missing validation bail
Summary
Koel is a free, open-source music streaming solution. Prior to version 9.7.1, Koel contains a Server-Side Request Forgery (SSRF) vulnerability in the radio station creation endpoint (POST /api/radio/stations). The url field validation rules are declared without the bail keyword, so the HasAudioContentType rule — which issues HTTP requests to the supplied URL — still executes even after the SafeUrl rule has rejected the URL as pointing to a private/reserved address. Any authenticated, non-admin user can therefore coerce the server into making HEAD/GET requests to arbitrary internal hosts. This issue has been patched in version 9.7.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
koel koel Affected: < 9.7.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-50221 (GCVE-0-2026-50221)

Vulnerability from cvelistv5 – Published: 2026-06-23 17:03 – Updated: 2026-06-23 17:38
VLAI
Summary
In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers (X-Container-Host, X-Container-Device, X-Delete-At-Host, X-Delete-At-Device) from client requests before forwarding them to object-servers. An authenticated user with write access can inject these headers to redirect container update requests to an attacker-controlled server, enabling server-side request forgery. The SSRF requests expose internal cluster metadata including storage policy indexes, partition mappings, device names, and when at rest encryption is enabled, cipher text and initialization vectors for the container-level encryption key. The attacker can also cause "ghost listings" in arbitrary containers via the shard-range redirect mechanism.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Impacted products
Vendor Product Version
OpenStack Swift Affected: 2.0.0 , < 2.35.3 (semver)
Affected: 2.36.0 , < 2.36.2 (semver)
Affected: 2.37.0 , < 2.37.2 (semver)
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Show details on NVD website

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CVE-2026-50189 (GCVE-0-2026-50189)

Vulnerability from cvelistv5 – Published: 2026-06-24 21:35 – Updated: 2026-06-25 15:25
VLAI
Title
Appsmith: RCE via Supervisord XML-RPC Admin Interface Exposed via /supervisor Caddy Route
Summary
Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, Appsmith's bundled supervisord exposes an XML-RPC interface on port 9001, reachable from outside the container via a Caddy reverse-proxy route at /supervisor/* on the public ingress. Combined with the APPSMITH_SUPERVISOR_PASSWORD exposed via GET /api/v1/admin/env, any authenticated administrator can send arbitrary XML-RPC calls to supervisord and execute OS commands inside the Docker container via twiddler.addProgramToGroup. This vulnerability is fixed in 2.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-183 - Permissive List of Allowed Inputs
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
appsmithorg appsmith Affected: < 2.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-50168 (GCVE-0-2026-50168)

Vulnerability from cvelistv5 – Published: 2026-06-22 15:39 – Updated: 2026-06-22 17:59
VLAI
Title
Angular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist Bypass
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, an issue in the @angular/platform-server package allows remote attackers to bypass host allowlist constraints and direct server-side outgoing requests to arbitrary external endpoints. This occurs due to a parser differential between the strict WHATWG URL parser used for allowlist validation and the lenient Domino URL parser used to initialize the server emulated DOM. When a server-side request contains a malformed URL with a double port structure (e.g., http://evil.com:80:80/path), Node's strict URL.canParse(url) logic returns false and skips host check validation entirely. However, the same malformed URL is later accepted and parsed leniently by Domino's internal parser, which resolves the origin to http://evil.com:80. The Angular SSR HTTP request interceptor (relativeUrlsTransformerInterceptorFn) then resolves all relative backend HTTP requests against this adopted origin, executing the SSRF attack. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-346 - Origin Validation Error
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
angular angular Affected: >= 22.0.0-next.0, < 22.0.0-rc.2
Affected: >= 21.0.0-next.0, < 21.2.15
Affected: >= 20.0.0-next.0, < 20.3.22
Affected: >= 19.0.0-next.0, < 19.2.23
Affected: <= 18.2.14
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Show details on NVD website

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CVE-2026-50134 (GCVE-0-2026-50134)

Vulnerability from cvelistv5 – Published: 2026-07-06 19:42 – Updated: 2026-07-07 16:57
VLAI
Title
Hugo: security.http.urls allow-list bypass via HTTP redirects
Summary
Hugo is a static site generator. From 0.91.0 until 0.162.0, resources.GetRemote enforces security.http.urls on the URL it is called with, but it did not re-validate intermediate URLs on HTTP 3xx redirects. An allowed server (or an attacker controlling its DNS or response) could therefore redirect the request to a host that the policy was meant to forbid and Hugo would fetch from the redirected target. The same bypass also lifted any host-shape restriction the operator had put in place. This vulnerability is fixed in 0.162.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Impacted products
Vendor Product Version
gohugoio hugo Affected: >= 0.91.0, < 0.162.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-50131 (GCVE-0-2026-50131)

Vulnerability from cvelistv5 – Published: 2026-06-10 20:27 – Updated: 2026-06-11 14:16
VLAI
Title
Fedify has an incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allows special-use IPv4 ranges
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Fedify previously addressed SSRF/internal network access in GHSA-p9cg-vqcc-grcx by adding public URL validation before runtime document and media fetching. However, the IPv4 validation logic present starting in version 0.11.2 and prior to versions 1.9.12, 1.10.11, 2.0.19, 2.1.15, and 2.2.4 appears incomplete. The `validatePublicUrl()` protection relies on `isValidPublicIPv4Address()` to reject non-public IPv4 destinations. The function blocks common private and local ranges such as `10.0.0.0/8`, `127.0.0.0/8`, `169.254.0.0/16`, `172.16.0.0/12`, and `192.168.0.0/16`, but it still treats several special-use, reserved, multicast, benchmarking, and carrier-grade NAT IPv4 ranges as valid public destinations. Because this validation is used as an SSRF defense before outbound fetches, this appears to be an incomplete mitigation or bypass class for the previous SSRF issue. Versions 1.9.12, 1.10.11, 2.0.19, 2.1.15, and 2.2.4 contain an updated patch.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
  • CWE-1286 - Improper Validation of Syntactic Correctness of Input
  • CWE-1389 - Incorrect Parsing of Numbers with Different Radices
Assigner
References
Impacted products
Vendor Product Version
fedify-dev fedify Affected: >= 0.11.2, < 1.9.12
Affected: >= 1.10.0, < 1.10.11
Affected: >= 2.0.0, < 2.0.19
Affected: >= 2.1.0, < 2.1.15
Affected: >= 2.2.0, < 2.2.4
Create a notification for this product.
fedify-dev vocab-runtime Affected: < 2.0.19
Affected: >= 2.1.0, < 2.1.15
Affected: >= 2.2.0, < 2.2.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-50127 (GCVE-0-2026-50127)

Vulnerability from cvelistv5 – Published: 2026-06-10 19:56 – Updated: 2026-06-11 14:09
VLAI
Title
Weblate SSRF: outbound URL guard misses the NAT64 well-known prefix (64:ff9b::/96)
Summary
Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCS_RESTRICT_PRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions. This issue has been patched in version 2026.6.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
Impacted products
Vendor Product Version
WeblateOrg weblate Affected: >= 5.15, < 2026.6
Create a notification for this product.
Show details on NVD website

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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.