Gitea public-only token bypass through Actions runner registration

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-116289
StatePUBLISHED
AssignerGitea
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-01 10:18:34 UTC
Updated2026-11-01 10:18:34 UTC
DescriptionGitea 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.

Risk And Classification

EPSS: 0.001490000 probability, percentile 0.040220000 (date 2026-11-02)

Problem Types: CWE-863 | CWE-863 CWE-863: Incorrect Authorization

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gitea Gitea affected 28.3.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/go-gitea/gitea/pull/39690 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
blog.gitea.com/release-of-28.3.0 88ee5874-cf24-4952-aea0-31affedb7ff2 blog.gitea.com
github.com/go-gitea/gitea/pull/39853 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/releases/tag/v28.3.0 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/security/advisories/GHSA-qcgm-ggp8-22qc 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: https://github.com/kimc0gi (en)

CNA: https://github.com/silverwind (en)

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