CVE-2026-103059 Gitea - Authentication Bypass

Gitea contains a broken authentication caused by case-insensitive SQL LIKE comparison of SSH public keys, letting attackers with derived private keys authenticate as other users, exploit requires SSH server enabled.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.28% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-305

Vendor fix

Update to a version where keys are looked up by fingerprint instead of case-insensitive LIKE comparison.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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