CVE-2026-23603

Description

Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim

References

• https://blog.gitea.com/gitea-1.27.0-is-released/
• https://github.com/go-gitea/gitea/releases/tag/v1.27.0
• https://github.com/go-gitea/gitea/security/advisories/GHSA-x77v-q46j-393g