Bug 2515486 (CVE-2026-55987)

Summary: CVE-2026-55987 code.gitea.io/gitea: Gitea: Administrator-deactivated accounts can be reactivated via OAuth2 sign-in
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Gitea. An attacker can reactivate an administrator-deactivated account by signing in via OAuth2, specifically when using authentication sources that do not utilize refresh tokens. This bypasses intended security controls, allowing unauthorized access to previously deactivated accounts.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-13 17:14:23 UTC
OAuth2 sign-in reactivates an administrator-deactivated account on auth sources without refresh tokens (incomplete fix of #38009)