Gitea's OpenID connect handler accepts a user's password without enforcing enrolled TOTP or WebAuthn verification before completing sign-in and linking an OpenID identifier. When OpenID sign-in is enabled, an attacker who knows the victim's password can obtain a session and link an attacker-controlled identifier. The attacker can then sign in through that identifier without the victim's password or second factor, and a password change does not remove the link.
History

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea
Vendors & Products Gitea
Gitea gitea

Sun, 18 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Description Gitea's OpenID connect handler accepts a user's password without enforcing enrolled TOTP or WebAuthn verification before completing sign-in and linking an OpenID identifier. When OpenID sign-in is enabled, an attacker who knows the victim's password can obtain a session and link an attacker-controlled identifier. The attacker can then sign in through that identifier without the victim's password or second factor, and a password change does not remove the link.
Title Gitea second-factor bypass through OpenID identity linking
Weaknesses CWE-304
CWE-696
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published: 2026-10-14T14:37:39.073Z

Updated: 2026-10-18T13:32:08.609Z

Reserved: 2026-08-13T16:50:58.701Z

Link: CVE-2026-73535

cve-icon Vulnrichment

Updated: 2026-10-18T13:32:01.509Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T15:17:23.517

Modified: 2026-10-18T14:16:55.403

Link: CVE-2026-73535

cve-icon Redhat

No data.