PT-2026-53930 · Seaweedfs · Seaweedfs

George Chen · Published 2026-06-30 · Updated 2026-06-30 · CVE-2026-58372

NVD

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

SeaweedFS before 4.34 contains a path traversal vulnerability in the S3 gateway DeleteMultipleObjectsHandler that allows authenticated S3 principals with write access to a single bucket to delete arbitrary objects in other tenants' buckets by supplying object keys containing ../ sequences in the DeleteObjects XML request body. Attackers can bypass authorization controls through a confused deputy condition, as the validateRequestPath middleware only inspects URL-captured path variables and never examines request-body keys, allowing the filer path to collapse directory traversal sequences and resolve deletions outside the authorized bucket.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-58372

Affected Products

Seaweedfs

References · 7

• 🔥 https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv · Exploit
• 🔥 https://github.com/geo-chen/oss/blob/main/seaweedfs.md · Exploit
• https://github.com/seaweedfs/seaweedfs/commit/0345658ea8e7c6a3948ad190634b00866ec244c9 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-58372 · Security Note
• https://github.com/seaweedfs/seaweedfs/pull/9931 · Note
• https://github.com/seaweedfs/seaweedfs/releases/tag/4.34 · Note
• https://vulncheck.com/advisories/seaweedfs-cross-bucket-object-deletion-via-deleteobjects-request-body-keys · Note