CVE-2026-73278
Published:October 06, 2026
Updated:October 09, 2026
Gitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only configured second factor. A party able to authenticate through the affected external identity flow can obtain a full session without the passkey verification enforced during password login. One affected path can also persist an external identity link, extending the compromise beyond the initial session; accounts with TOTP configured are outside the reported WebAuthn-only scenario.
Affected Packages
https://github.com/go-gitea/gitea.git (GITHUB):
Affected version(s) >=v1.16.1 <v1.27.2Fix Suggestion:
Update to version v1.27.2https://github.com/go-gitea/gitea.git (GITHUB):
Affected version(s) =v1.28.0-dev <v28.0.0Fix Suggestion:
Update to version v28.0.0gitea.dev (GO):
Affected version(s) >=v1.16.1 <v1.27.2Fix Suggestion:
Update to version v1.27.2code.gitea.io/gitea (GO):
Affected version(s) >=v1.16.0-dev.0.20220114150331-35c3553870e3 <v1.27.2Fix Suggestion:
Update to version v1.27.2Related Resources (7)
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Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Authentication
EPSS
Base Score:
0.47