{"id":"CVE-2026-55873","state":"PUBLISHED","title":"SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets","description":"SeaweedFS is a distributed storage system. In versions 4.08 through 4.33, requests signed with SigV4 service s3tables are routed to the S3Tables management API where authorization collapses account-less S3 identities into the shared admin account and fails open, allowing an authenticated low-privileged S3 user to enumerate administrator-owned table bucket names and ARNs. This issue is fixed in version 4.34.","publishedAt":"2026-07-08T14:48:37.000Z","updatedAt":"2026-07-08T15:33:34.018Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["seaweedfs seaweedfs"],"affected":[{"vendor":"seaweedfs","product":"seaweedfs","versions":[{"version":">= 4.08, < 4.34","status":"affected"}]}],"references":["https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-hgpf-8634-g44c","https://github.com/seaweedfs/seaweedfs/pull/9961","https://github.com/seaweedfs/seaweedfs/commit/b13463880c1fa62e255c058a9228b63cc95b4b36","https://github.com/seaweedfs/seaweedfs/releases/tag/4.34"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55873.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55873","state":"PUBLISHED","datePublished":"2026-07-08T14:48:37.000Z","dateUpdated":"2026-07-08T15:33:34.018Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-17T16:59:42.758Z"},"containers":{"cna":{"title":"SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets","descriptions":[{"lang":"en","value":"SeaweedFS is a distributed storage system. In versions 4.08 through 4.33, requests signed with SigV4 service s3tables are routed to the S3Tables management API where authorization collapses account-less S3 identities into the shared admin account and fails open, allowing an authenticated low-privileged S3 user to enumerate administrator-owned table bucket names and ARNs. This issue is fixed in version 4.34."}],"affected":[{"vendor":"seaweedfs","product":"seaweedfs","versions":[{"version":">= 4.08, < 4.34","status":"affected"}]}],"references":[{"url":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-hgpf-8634-g44c","name":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-hgpf-8634-g44c","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/seaweedfs/seaweedfs/pull/9961","name":"https://github.com/seaweedfs/seaweedfs/pull/9961","tags":["x_refsource_MISC"]},{"url":"https://github.com/seaweedfs/seaweedfs/commit/b13463880c1fa62e255c058a9228b63cc95b4b36","name":"https://github.com/seaweedfs/seaweedfs/commit/b13463880c1fa62e255c058a9228b63cc95b4b36","tags":["x_refsource_MISC"]},{"url":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.34","name":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.34","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-08T14:48:37.000Z"},"source":{"advisory":"GHSA-hgpf-8634-g44c","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-08T15:33:28.325392Z","id":"CVE-2026-55873","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-08T15:33:34.018Z"}}]}}}