Bug 2564536 (CVE-2026-116289)

Summary: CVE-2026-116289 code.gitea.io/gitea: Gitea: Information disclosure via improper access token validation in Actions runner registration
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: gbenhaim, niyer, twaugh
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Gitea. An authenticated attacker holding a personal access token restricted to public resources can register an organization-level Actions runner because Gitea fails to validate the token's scope properly. This issue allows the runner to receive and execute automated jobs from private repositories within the organization, leading to the unauthorized disclosure of private workflow definitions, environment secrets, and repository access tokens.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-01 09:52:06 UTC 
Gitea did not reject personal access tokens restricted to public resources (`public-only`) on the organization Actions runner registration-token endpoint, and the runner registered with the resulting token was not limited to public repositories. Holding only such a token with `write:organization` that belongs to an owner of a public organization, an attacker could register an organization-level runner and receive jobs of the organization's private repositories that have Actions enabled, including the workflow content, Actions secrets and variables, and a task token with access to the private repository. The issue widens what the restricted token can reach; it gives nothing beyond what the owner's full account can already do.