CVE-2026-109553 Gitea SSH certificate principal impersonation of other users

Gitea resolved the principals of an SSH certificate by searching the content of all stored public keys instead of only principal keys. When Gitea trusts a user certificate authority SSHTRUSTEDUSERCAKEYS and accepts arbitrary principals SSHAUTHORIZEDPRINCIPALSALLOW=anything, a user could register...

CVE-2026-109553

The Gitea Git repository management system is vulnerable to unauthorized access due to a flaw in the VerifyCert() function. The system incorrectly resolves SSH certificate principals by searching the content of all stored public keys instead of only the principal keys. If Gitea is configured to t...

CVE-2026-109553 Gitea SSH certificate principal impersonation of other users

Gitea resolved the principals of an SSH certificate by searching the content of all stored public keys instead of only principal keys. When Gitea trusts a user certificate authority SSHTRUSTEDUSERCAKEYS and accepts arbitrary principals SSHAUTHORIZEDPRINCIPALSALLOW=anything, a user could register...

CVE-2026-109553 Gitea SSH certificate principal impersonation of other users

Gitea resolved the principals of an SSH certificate by searching the content of all stored public keys instead of only principal keys. When Gitea trusts a user certificate authority SSHTRUSTEDUSERCAKEYS and accepts arbitrary principals SSHAUTHORIZEDPRINCIPALSALLOW=anything, a user could register...

PT-2026-117151

Gitea resolved the principals of an SSH certificate by searching the content of all stored public keys instead of only principal keys. When Gitea trusts a user certificate authority SSH TRUSTED USER CA KEYS and accepts arbitrary principals SSH AUTHORIZED PRINCIPALS ALLOW=anything, a user could...