CVE-2026-119545 Details
Description
Forgejo through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through 17.0.1 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server issue requests by submitting arbitrary OpenID identifier URLs. Attackers can POST crafted identifiers to /user/login/openid to trigger blind discovery GET requests to loopback, cloud metadata, and internal addresses for port scanning and probing.
A server-side request forgery (SSRF) vulnerability has been identified in Forgejo versions through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through 17.0.1. This vulnerability allows unauthenticated attackers to make the server issue requests by submitting arbitrary OpenID identifier URLs. When OpenID sign-in is enabled, attackers can POST crafted identifiers to the '/user/login/openid' endpoint, triggering blind discovery GET requests to loopback, cloud metadata, and internal addresses. This can be exploited for port scanning and probing.
Users can disable OpenID sign-in in the application's configuration file to mitigate this vulnerability. For those using Docker, ensure to set the 'GITEA__openid__ENABLE_OPENID_SIGNIN' environment variable to 'false'.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 30, 2026CISA-ADP
Assessed Oct 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/go-gitea/gitea/security/advisories/GHSA-2fcr-jfvc-vgg2 | CISA-ADP | AdvisoryBundleExploitRemedyVendor |
| https://abraxaslabs.tech/research/forgejo-openid-discovery-ssrf | [email protected] | ExploitTechnical Analysis |
| https://codeberg.org/forgejo/forgejo | [email protected] | ProductVendor |
| https://codeberg.org/forgejo/forgejo/src/tag/v17.0.1/modules/auth/openid/openid.go#L35-L36 | [email protected] | Source CodeVendor |
| https://github.com/go-gitea/gitea/security/advisories/GHSA-2fcr-jfvc-vgg2 | [email protected] | AdvisoryBundleExploitRemedyVendor |
| https://www.vulncheck.com/advisories/forgejo-through-15.0.11-16.0.7-and-17.0.1-ssrf-via-openid-discovery | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Forgejo | <= 15.0.11 (semver) >= 16.0.0, <= 16.0.7 (semver) >= 17.0.0, <= 17.0.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 30, 2026 | CVE Modified | CISA-ADP |
| Oct 30, 2026 | New CVE Received | [email protected] |