high8.1
CVE-2026-72921
SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths
Impact
SeaweedFS is a distributed storage system. Prior to 4.24, the weed/server/filer_server_handlers.go allowed_prefixes authorization check used strings.HasPrefix on raw path strings, so a filer JWT scoped to /tenant1 also authorized sibling paths such as /tenant1234, /tenant1-old, and /tenant1backup, enabling cross-tenant reads and writes with a valid scoped token. This issue is fixed in version 4.24.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/seaweedfs/seaweedfs | < 0.0.0-20260512171048-05ed5c9ae8a2 | 0.0.0-20260512171048-05ed5c9ae8a2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-gv5w-hfx8-8cwq
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-gv5w-hfx8-8cwq
- https://nvd.nist.gov/vuln/detail/CVE-2026-72921
- https://github.com/seaweedfs/seaweedfs/pull/9439
- https://github.com/seaweedfs/seaweedfs/commit/05ed5c9ae8a2a45101b52b61d02f170d20d587ff
- https://github.com/seaweedfs/seaweedfs/releases/tag/4.24