CVE WatchOct 19, 2026

CVE-2026-104627

The Gitea OpenID association callback in the security settings accepted a positive OpenID 2.0 assertion without checking that the signed-in

CVSS

5.4

Medium

EPSS

0.1%

KEV

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Exploit Today

0-100

Published: Oct 18, 2026 · Last modified: Oct 19, 2026 · CWE-287 · CWE-352

EPSS · 30d

Not enough EPSS history yet.

Technical description

The Gitea OpenID association callback in the security settings accepted a positive OpenID 2.0 assertion without checking that the signed-in user had started the linking. Because OpenID 2.0 allows unsolicited assertions, an attacker-controlled OpenID provider could attach the attacker's identity to the account of a signed-in victim who opened a crafted link, and the attacker could then sign in as the victim through OpenID login, which does not apply the local TOTP or WebAuthn checks. The callback now requires a time-limited `state` value bound to the user.

Official references

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