CVE-2026-116289

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{"bugzilla": {"description": "code.gitea.io/gitea: Gitea: Information disclosure via improper access token validation in Actions runner registration", "id": "2564536", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2564536"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-266", "details": ["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.", "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."], "name": "CVE-2026-116289", "public_date": "2026-11-01T09:48:35Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-116289\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-116289\nhttps://blog.gitea.com/release-of-28.3.0/\nhttps://github.com/go-gitea/gitea/pull/39690\nhttps://github.com/go-gitea/gitea/pull/39853\nhttps://github.com/go-gitea/gitea/releases/tag/v28.3.0\nhttps://github.com/go-gitea/gitea/security/advisories/GHSA-qcgm-ggp8-22qc"], "statement": "This vulnerability is rated as Moderate severity because exploitation requires an attacker to already possess a scoped personal access token with organization-level administrative privileges, limiting the blast radius to permissions already held by that account. Red Hat OpenShift Pipelines and Konflux consume Gitea client libraries for source repository integration and do not host or expose the vulnerable Actions runner registration service. Consequently, direct exposure in standard Red Hat deployments is minimal.", "threat_severity": "Moderate"}

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