CVE-2026-72921 PUBLISHED

SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths

Assigner: GitHub_M
Reserved: 10.08.2026 Published: 11.08.2026 Updated: 11.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 8.1

Product Status

Vendor seaweedfs
Product seaweedfs
Versions
  • Version < 4.24 is affected

References

Problem Types

  • CWE-863: Incorrect Authorization CWE