Server-Side Request Forgery (SSRF) in Gitea - CVE-2026-25946
Published: August 31, 2026
Vulnerability identifier: #VU146345
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-25946
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to make arbitrary HTTP requests to internal network services.
The vulnerability exists due to server-side request forgery in the OpenID authentication handler when processing a user-supplied OpenID URL. A remote attacker can submit a specially crafted OpenID URI to make arbitrary HTTP requests to internal network services.
Only instances with OpenID enabled are vulnerable.
Affected software
Gitea
How to mitigate CVE-2026-25946
Install security update from vendor's website.
Gitea - update to 1.27.0