{"id":"CVE-2026-112887","title":"Gitea Actions task token private repository enumeration","summary":"Gitea Actions task tokens authenticate to the REST API as a shared system user with a negative ID, which repository, organization, project and key filters treated as having no owner restriction, and the token carried no API scope to rest…","severity":"none","cwe":["CWE-200","CWE-862"],"vendor":"Gitea","product":"gitea.dev","affected":["gitea.dev < 28.3.0"],"published":"2026-11-01","updated":"2026-11-01","sourceUpdated":"2026-11-01T09:48:30.659Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112887","references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-8r36-6j2c-3gmv","label":"GitHub Security Advisory GHSA-8r36-6j2c-3gmv"},{"url":"https://github.com/go-gitea/gitea/pull/39945","label":"Fix: go-gitea/gitea pull request #39945"},{"url":"https://github.com/go-gitea/gitea/pull/40115","label":"Fix backport to release/v28: go-gitea/gitea pull request #40115"},{"url":"https://blog.gitea.com/release-of-28.3.0/","label":"Gitea 28.3.0 release announcement"},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.3.0","label":"go-gitea/gitea v28.3.0 release"}],"tags":["cve.org"],"epss":0.00185,"epssPercentile":0.08167,"ingestedAt":"2026-11-05T18:28:50.701Z","slug":"CVE-2026-112887","body":"## Overview\n\nGitea Actions task tokens authenticate to the REST API as a shared system user with a negative ID, which repository, organization, project and key filters treated as having no owner restriction, and the token carried no API scope to restrict user-scoped routes. A user who can run a workflow could use the job's token with `GET /api/v1/user/repos` to list every repository on the instance, including private repositories of other users and organizations, with their metadata. Repository contents remained protected by per-repository permission checks. System users now own nothing, and `/api/v1/user` routes other than `GET /api/v1/user` accept only individual and bot accounts.\n\n## Affected\n\n- `gitea.dev < 28.3.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}