{"id":"EUVD-2026-56156","revision":null,"records":[{"revision":"12d12f9d8f904650b0ad6e5c6d17534a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72920","aliases":[],"title":"SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control","description":"SeaweedFS is a distributed storage system. Prior to 4.24, the filer registers the SeaweedIdentityAccessManagement gRPC service without mandatory authentication when jwt.filer_signing.key is unset, allowing any client that can reach the filer gRPC port to invoke CreateUser, CreateAccessKey, PutPolicy, and related IAM RPCs to mint credentials and gain S3 administrative control. This issue is fixed in versions 4.24.","state":0,"publishedAt":"2026-08-11T14:23:22.425+00:00","modifiedAt":"2026-08-11T14:46:46.118+00:00","affected":[{"ecosystem":"Vendor product","name":"seaweedfs","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"seaweedfs\",\n                    \"product\": \"seaweedfs\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.24\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg","https://github.com/seaweedfs/seaweedfs/pull/9442","https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7","https://github.com/seaweedfs/seaweedfs/releases/tag/4.24"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72920","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72920","identifiers":["CVE-2026-72920"]},"retained":false,"historicalAffected":[]},{"revision":"73702a760e5341aeaf003f163d11994b","observedAt":"2026-11-14T03:06:19.685+00:00","statement":{"source":"euvd","id":"EUVD-2026-56156","aliases":["CVE-2026-72920","GHSA-2v6v-25fm-p4fg"],"title":"SeaweedFS is a distributed storage system. Prior to 4.24, the filer registers the SeaweedIdentityAccessManagement gRPC service without mandatory authentication when jwt.filer_signing.key is unset, allowing any client that can reach the file…","description":"SeaweedFS is a distributed storage system. Prior to 4.24, the filer registers the SeaweedIdentityAccessManagement gRPC service without mandatory authentication when jwt.filer_signing.key is unset, allowing any client that can reach the filer gRPC port to invoke CreateUser, CreateAccessKey, PutPolicy, and related IAM RPCs to mint credentials and gain S3 administrative control. This issue is fixed in versions 4.24.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":null}],"references":["https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg","https://github.com/seaweedfs/seaweedfs/pull/9442","https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7","https://github.com/seaweedfs/seaweedfs/releases/tag/4.24"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-56156","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 11, 2026, 2:23:22 PM","dateUpdated":"Aug 11, 2026, 2:46:46 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-56156","identifiers":["EUVD-2026-56156","CVE-2026-72920","GHSA-2v6v-25fm-p4fg"]},"retained":false,"historicalAffected":[]},{"revision":"2ae7bd9fb8dd449bace367613545d2ed","observedAt":"2026-10-25T15:19:03.401+00:00","statement":{"source":"nvd","id":"CVE-2026-72920","aliases":[],"title":"SeaweedFS is a distributed storage system. Prior to 4.24, the filer registers the SeaweedIdentityAccessManagement gRPC service without mandatory authentication when jwt.filer_signing.key is unset, allowing any client that can reach the file…","description":"SeaweedFS is a distributed storage system. Prior to 4.24, the filer registers the SeaweedIdentityAccessManagement gRPC service without mandatory authentication when jwt.filer_signing.key is unset, allowing any client that can reach the filer gRPC port to invoke CreateUser, CreateAccessKey, PutPolicy, and related IAM RPCs to mint credentials and gain S3 administrative control. This issue is fixed in versions 4.24.","state":0,"publishedAt":"2026-08-11T15:17:38.053+00:00","modifiedAt":"2026-09-09T20:46:02.457+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7","https://github.com/seaweedfs/seaweedfs/pull/9442","https://github.com/seaweedfs/seaweedfs/releases/tag/4.24","https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72920","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-306"],"productCriteria":[],"sourceDates":{"published":"2026-08-11T15:17:38.053","lastModified":"2026-09-09T20:46:02.457"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-72920","identifiers":["CVE-2026-72920"]},"retained":false,"historicalAffected":[]},{"revision":"3e0c0eac946c432b87ec2b2abe057d61","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-2v6v-25fm-p4fg","aliases":["BIT-seaweedfs-2026-72920","CVE-2026-72920","GO-2026-6351"],"title":"SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control","description":"### Impact\nThe filer registered the IAM gRPC service (`SeaweedIdentityAccessManagement`) with no authentication. Any client able to reach the filer gRPC port could invoke IAM RPCs — `CreateUser`, `CreateAccessKey`, `PutUserPolicy`, and related calls — to mint credentials and grant itself S3 administrative privileges. This fully compromises the confidentiality, integrity, and availability of stored objects.\n\nNo credentials are required, and enabling the documented JWT signing keys does not close it: the IAM gRPC service was not gated by that mechanism. Even under mTLS, the listener-level `allowed_commonNames` ACL applies to the port rather than to individual RPCs, so any cluster mesh certificate could reach these administrative calls.\n\n### Affected component\n- `weed/server/filer_server_handlers_iam_grpc.go`\n- `weed/command/filer.go`\n\n### Patches\nFixed in **4.24**. Every IAM RPC now requires a Bearer token signed with the filer admin signing key (`jwt.filer_signing.key`), and the service refuses to register when no signing key is configured — removing the unauthenticated default entirely.\n\n### Workarounds\nRestrict the filer gRPC port to trusted hosts. Configure `jwt.filer_signing.key` in `security.toml` and upgrade to 4.24; operators that use the IAM RPCs must attach an admin-signed Bearer token on each call.\n\n### References\n- Fixed by seaweedfs/seaweedfs#9442 (follow-ups: #9498, #9508, #9514, #9536)\n- Reported by Kadir Arslan (https://github.com/KadirArslan)","state":0,"publishedAt":"2026-09-02T14:51:58+00:00","modifiedAt":"2026-09-10T15:26:01.399739+00:00","affected":[{"ecosystem":"Go","name":"github.com/seaweedfs/seaweedfs","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.0.0-20260512171108-5e8f99f40a8a"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg","https://nvd.nist.gov/vuln/detail/CVE-2026-72920","https://github.com/seaweedfs/seaweedfs/pull/9442","https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7","https://github.com/seaweedfs/seaweedfs","https://github.com/seaweedfs/seaweedfs/releases/tag/4.24"],"sourceUrl":"https://github.com/advisories/GHSA-2v6v-25fm-p4fg","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-2v6v-25fm-p4fg","identifiers":["GHSA-2v6v-25fm-p4fg","BIT-seaweedfs-2026-72920","CVE-2026-72920","GO-2026-6351"]},"retained":false,"historicalAffected":[]},{"revision":"40646efb7d384a29be37891366f9ab6e","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6351","aliases":["BIT-seaweedfs-2026-72920","CVE-2026-72920","GHSA-2v6v-25fm-p4fg"],"title":"SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control in github.com/seaweedfs/seaweedfs","description":"SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control in github.com/seaweedfs/seaweedfs","state":0,"publishedAt":"2026-09-10T14:48:42+00:00","modifiedAt":"2026-09-10T15:26:01.399739+00:00","affected":[{"ecosystem":"Go","name":"github.com/seaweedfs/seaweedfs","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.0.0-20260512171108-5e8f99f40a8a"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg","https://nvd.nist.gov/vuln/detail/CVE-2026-72920","https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7","https://github.com/seaweedfs/seaweedfs/pull/9442","https://github.com/seaweedfs/seaweedfs/releases/tag/4.24"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6351","license":"OSV · upstream source license applies","key":"osv:GO-2026-6351","identifiers":["GO-2026-6351","BIT-seaweedfs-2026-72920","CVE-2026-72920","GHSA-2v6v-25fm-p4fg"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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