{"id":"CVE-2026-72921","title":"SeaweedFS is a distributed storage system","summary":"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…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-863"],"vendor":"seaweedfs","product":"github.com/seaweedfs/seaweedfs","affected":["github.com/seaweedfs/seaweedfs < 0.0.0-20260512171048-05ed5c9ae8a2"],"patched":["github.com/seaweedfs/seaweedfs 0.0.0-20260512171048-05ed5c9ae8a2"],"published":"2026-08-11","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:46:02.457","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72921","references":[{"url":"https://github.com/seaweedfs/seaweedfs/commit/05ed5c9ae8a2a45101b52b61d02f170d20d587ff","label":"security-advisories@github.com"},{"url":"https://github.com/seaweedfs/seaweedfs/pull/9439","label":"security-advisories@github.com"},{"url":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.24","label":"security-advisories@github.com"},{"url":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-gv5w-hfx8-8cwq","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72921"},{"url":"https://github.com/advisories/GHSA-gv5w-hfx8-8cwq"}],"tags":["nvd","ghsa","go"],"epss":0.00426,"epssPercentile":0.34267,"aliases":["GHSA-gv5w-hfx8-8cwq"],"ecosystem":"go","ingestedAt":"2026-09-02T23:52:22.939Z","slug":"CVE-2026-72921","body":"## Overview\n\nSeaweedFS 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-72921)\n\nAffected packages:\n\n- `github.com/seaweedfs/seaweedfs < 0.0.0-20260512171048-05ed5c9ae8a2`\n\nPatched in:\n\n- `github.com/seaweedfs/seaweedfs 0.0.0-20260512171048-05ed5c9ae8a2`\n\nSource: https://github.com/advisories/GHSA-gv5w-hfx8-8cwq","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}