PT-2026-52557 · Seaweedfs · Seaweedfs

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-54917

Mitre

CVSS v4.0

7.8

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

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

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-54917

Affected Products

Seaweedfs

References · 3

• 🔥 https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-54917 · Security Note
• https://github.com/seaweedfs/seaweedfs/pull/9687 · Note