Vulnerability Description
SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the S3 API gateway and the Iceberg REST catalog gateway construct their routers with mux.NewRouter().SkipClean(true). With path cleaning disabled, a .. segment inside the URL survives routing, so a request such as `GET /bucket-A/../evil-bucket/key`, is matched as bucket=bucket-A, object=../evil-bucket/key. The captured object key is then joined into a filer path with util.JoinPath (S3) / path.Join (Iceberg), which collapse the .. server-side, so the actual read or write lands in evil-bucket. This vulnerability is fixed in 4.30.
Related Weaknesses (CWE)
References
- https://github.com/seaweedfs/seaweedfs/pull/9687
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv
FAQ
What is CVE-2026-54917?
CVE-2026-54917 is a documented vulnerability. SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the S3 API gateway and the Iceberg REST catalog gateway construct their routers with...
How severe is CVE-2026-54917?
CVSS scoring is not yet available for CVE-2026-54917. Check NVD for updates.
Is there a patch for CVE-2026-54917?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.