CVE-2026-58372 SeaweedFS < 4.34 - Cross-Bucket Object Deletion via DeleteObjects Request-Body Keys
Authenticated users can delete arbitrary objects in other tenants' buckets via path traversal in S3 DeleteObjects requests.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-58372?
CVE-2026-58372 is a high-severity path traversal vulnerability in seaweedfs, published on 30 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-58372?
How do I fix CVE-2026-58372?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-58372 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58372 exists.
Sources
Also known as GHSA-9cq9-w9qm-wc9p.