Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-54917

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 26.3%
CVSS Severity
CVSS v3 Score 10.0
Products affected by CVE-2026-54917


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