Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/seaweedfs/seaweedfs/commit/05ed5c9ae8a2a45101b52b61d02f170d20
- https://github.com/seaweedfs/seaweedfs/pull/9439
- https://github.com/seaweedfs/seaweedfs/releases/tag/4.24
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-gv5w-hfx8-8cwq
FAQ
What is CVE-2026-72921?
CVE-2026-72921 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 scope...
How severe is CVE-2026-72921?
CVE-2026-72921 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72921?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.