CVE-2026-103059: critical vulnerability in Gitea
Gitea built-in SSH server authentication bypass through key case folding
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.2%
exploitation probability
0.2%top 96% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
Gitea · GiteaRelated CVEs — Gitea
In the same product, most dangerous first.
CVE-2026-60004CRITICALCVE-2026-60004EPSS 24.0%KEVCVE-2019-1010314—CVE-2019-1010314EPSS 0.8%CVE-2019-1010261—CVE-2019-1010261EPSS 0.8%CVE-2026-34966HIGHGitea prior to 1.27.0 SSRF via Migration URI Fetch BypassEPSS 0.4%CVE-2025-69413MEDIUMCVE-2025-69413EPSS 0.4%CVE-2025-68938MEDIUMCVE-2025-68938EPSS 0.4%