Vulnerability Description
Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git LFS storage is content-addressed by OID alone (<LFS-root>/<oid[0]>/<oid[1]>/<oid>) but per-repo authorization lives in the lfs_object table keyed (repo_id, oid). serveUpload skips re-uploading when the OID file already exists on disk and inserts a new (repo_id, oid) row pointing at it without verifying the request body hashes to the OID being claimed. Any user with write access to one repo can bind their repo to an OID owned by a private repo and download the original bytes via their own download endpoint. This vulnerability is fixed in 0.14.3.
Related Weaknesses (CWE)
References
- https://github.com/gogs/gogs/commit/f35a767af74e05342bafc6fdda02c791816426f8
- https://github.com/gogs/gogs/pull/8333
- https://github.com/gogs/gogs/releases/tag/v0.14.3
- https://github.com/gogs/gogs/security/advisories/GHSA-6p9m-q3jp-47h4
- https://github.com/gogs/gogs/security/advisories/GHSA-6p9m-q3jp-47h4
FAQ
What is CVE-2026-52812?
CVE-2026-52812 is a documented vulnerability. Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git LFS storage is content-addressed by OID alone (<LFS-root>/<oid[0]>/<oid[1]>/<oid>) but per-repo authorization lives in the lfs_obje...
How severe is CVE-2026-52812?
CVSS scoring is not yet available for CVE-2026-52812. Check NVD for updates.
Is there a patch for CVE-2026-52812?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.