CVE-2026-73535

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.gitea.com/release-of-1.27.2/
https://github.com/go-gitea/gitea/pull/38805
https://github.com/go-gitea/gitea/pull/38810
https://github.com/go-gitea/gitea/releases/tag/v1.27.2
https://github.com/go-gitea/gitea/security/advisories/GHSA-8xjr-x7rg-hp5h

Configurations

No configuration.

History

18 Oct 2026, 14:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

14 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-14 15:17

Updated : 2026-10-18 14:16

NVD link : CVE-2026-73535

Mitre link : CVE-2026-73535

CVE.ORG link : CVE-2026-73535

JSON object : View

Products Affected

No product.

CWE

CWE-304

Missing Critical Step in Authentication

CWE-696

Incorrect Behavior Order

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