{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55874","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-17T16:59:42.759Z","datePublished":"2026-07-08T14:43:40.155Z","dateUpdated":"2026-07-08T17:01:02.948Z"},"containers":{"cna":{"title":"SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4"},{"name":"https://github.com/seaweedfs/seaweedfs/pull/9929","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/pull/9929"},{"name":"https://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd"},{"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":"< 4.34","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-08T14:43:40.155Z"},"descriptions":[{"lang":"en","value":"SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side copy. This issue is fixed in version 4.34."}],"source":{"advisory":"GHSA-56wq-x3wv-3ff4","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-08T16:52:14.324777Z","id":"CVE-2026-55874","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":"2026-07-08T17:01:02.948Z"}}]}}