CVE-2026-103059: Gitea

Critical severity, CVSS 9.1. EPSS: 0.3% chance of exploitation in the next 30 days.

When Gitea's built-in SSH server is enabled (`START_SSH_SERVER = true`), the presented public key was looked up with an SQL `LIKE` comparison of its encoded content, which is case-insensitive on some databases, including the default SQLite. An attacker who can construct a case variant of another user's registered RSA public key for which they can derive the private key could have that key matched to the victim's account and authenticate over SSH as that user. Keys are now looked up by fingerprint.

Affected products

• Gitea Gitea: up to and including 1.27.3

Published 2026-10-06. Last modified 2026-10-07.