{"cve":"CVE-2026-72921","nvd":{"published":"2026-08-11T15:17:38.217","modified":"2026-09-09T20:46:02.457","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-863"],"references":["https://github.com/seaweedfs/seaweedfs/commit/05ed5c9ae8a2a45101b52b61d02f170d20d587ff","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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:54.990491175+00:00"},"epss":{"cve":"CVE-2026-72921","score":0.00426,"percentile":0.3693,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-gv5w-hfx8-8cwq","url":"https://osv.dev/vulnerability/GHSA-gv5w-hfx8-8cwq","summary":"SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths","modified":"2026-09-10T15:25:33.076515113Z","packages":[{"ecosystem":"Go","name":"github.com/seaweedfs/seaweedfs","purl":"pkg:golang/github.com/seaweedfs/seaweedfs","ranges":["<0.0.0-20260512171048-05ed5c9ae8a2"],"fixed":["0.0.0-20260512171048-05ed5c9ae8a2"]}]},{"id":"GO-2026-6361","url":"https://osv.dev/vulnerability/GO-2026-6361","summary":"SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths in github.com/seaweedfs/seaweedfs","modified":"2026-09-10T15:25:33.076515113Z","packages":[{"ecosystem":"Go","name":"github.com/seaweedfs/seaweedfs","purl":"pkg:golang/github.com/seaweedfs/seaweedfs","ranges":["<0.0.0-20260512171048-05ed5c9ae8a2"],"fixed":["0.0.0-20260512171048-05ed5c9ae8a2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}