CVE-2026-72921 — SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths
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 string…
Published: 2026-08-11 · CVSS: 8.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7