What is GHSA-v8f2-2ghq-9whv?

GHSA-v8f2-2ghq-9whv is a security advisory published by GitHub Security Advisories with High severity. Gitea forwarded-proto validation allows canonical URL spoofing

Which CVE IDs does GHSA-v8f2-2ghq-9whv cover?

GHSA-v8f2-2ghq-9whv covers the following CVE IDs: CVE-2026-27779. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-v8f2-2ghq-9whv?

GHSA-v8f2-2ghq-9whv has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

Which products are affected by GHSA-v8f2-2ghq-9whv?

GHSA-v8f2-2ghq-9whv affects 1 product, including: go/code.gitea.io/gitea:\u003c 1.25.5.

GHSA-v8f2-2ghq-9whvHighCVSS 7.5

Gitea forwarded-proto validation allows canonical URL spoofing

Vendor

GitHub Security Advisories

Published

July 3, 2026

Last Modified

September 1, 2026

🔗 CVE IDs covered (1)

CVE-2026-27779 →

📋 Description

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

🎯 Affected products1

go/code.gitea.io/gitea:< 1.25.5

🔗 References (8)

https://nvd.nist.gov/vuln/detail/CVE-2026-27779
https://github.com/go-gitea/gitea/pull/36810
https://github.com/go-gitea/gitea/pull/36836
https://blog.gitea.com/release-of-1.25.5
https://github.com/go-gitea/gitea/releases/tag/v1.25.5
https://github.com/go-gitea/gitea/commit/723ce3579f96e75fd12514283023a051a1432b1b
https://github.com/go-gitea/gitea/commit/e2517e0fa93177ef6947245eaeab543c95ef18ff
https://github.com/advisories/GHSA-v8f2-2ghq-9whv