{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55873","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-17T16:59:42.758Z","datePublished":"2026-07-08T14:48:37.000Z","dateUpdated":"2026-07-08T15:33:34.018Z"},"containers":{"cna":{"title":"SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets","problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"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"}}],"references":[{"name":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-hgpf-8634-g44c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-hgpf-8634-g44c"},{"name":"https://github.com/seaweedfs/seaweedfs/pull/9961","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/pull/9961"},{"name":"https://github.com/seaweedfs/seaweedfs/commit/b13463880c1fa62e255c058a9228b63cc95b4b36","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/commit/b13463880c1fa62e255c058a9228b63cc95b4b36"},{"name":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.34","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.34"}],"affected":[{"vendor":"seaweedfs","product":"seaweedfs","versions":[{"version":">= 4.08, < 4.34","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-08T14:48:37.000Z"},"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."}],"source":{"advisory":"GHSA-hgpf-8634-g44c","discovery":"UNKNOWN"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-08T15:33:34.018Z"}}]}}