Directory Traversal Affecting seaweedfs-cosi-driver package, versions <0.3.1-r7
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-MINIMOSLATEST-SEAWEEDFSCOSIDRIVER-18853017
- published16 Aug 2026
- disclosed25 Jun 2026
Introduced: 25 Jun 2026
CVE-2026-54917 (opens in a new tab)How to fix?
Upgrade Minimos:latest seaweedfs-cosi-driver to version 0.3.1-r7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream seaweedfs-cosi-driver package and not the seaweedfs-cosi-driver package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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.
References
- https://www.cve.org/CVERecord?id=CVE-2026-54917
- https://github.com/advisories/GHSA-w62w-66v9-vvgv
- https://osv.dev/vulnerability/MINI-q3mg-m32h-9cmh
- https://osv.dev/vulnerability/CVE-2026-54917
- https://github.com/seaweedfs/seaweedfs/pull/9687
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-54917.yaml