GHSA-v8f2-2ghq-9whv

Gitea forwarded-proto validation allows canonical URL spoofing

Source: GitHub Advisory Database (reviewed) High CVE-2026-27779

Packages

Ecosystem	Package	Affected	Fixed in
Go	code.gitea.io/gitea	< 1.25.5	1.25.5

Details

As written in the advisory (Markdown source, shown as plain text).

Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2026-27779 advisory
https://github.com/go-gitea/gitea/pull/36810 web
https://github.com/go-gitea/gitea/pull/36836 web
https://github.com/go-gitea/gitea/commit/723ce3579f96e75fd12514283023a051a1432b1b web
https://github.com/go-gitea/gitea/commit/e2517e0fa93177ef6947245eaeab543c95ef18ff web
https://blog.gitea.com/release-of-1.25.5 web
https://github.com/go-gitea/gitea package
https://github.com/go-gitea/gitea/releases/tag/v1.25.5 web