HIGHCVSS 7.5EPSS 0.6%

CVE-2026-27779

Gitea forwarded-proto validation allows canonical URL spoofing

Published: 2026-07-03
Modified: 2026-09-01
EPSS percentile: 46%
Aliases: GHSA-v8f2-2ghq-9whv
Sources: github-advisory

Summary

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

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
Go	code.gitea.io/gitea	—	1.25.5

Remediation: Upgrade to 1.25.5 or later.

References

https://github.com/advisories/GHSA-v8f2-2ghq-9whv

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.