{"id":"CVE-2026-73290","state":"PUBLISHED","title":"RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket fallback","description":"RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, an anonymous ListObjectVersions request in rustfs/src/storage/access.rs that lacks a direct bucket-policy grant falls back to an s3:ListBucket check and returns before the policy_allowed path applies deny_anonymous_table_data_plane_if_needed and RestrictPublicBuckets, so a bucket that permits anonymous listing can continue exposing version listings after an operator enables the public-access control. The bypass affects GET /<bucket>?versions= and can disclose object version metadata even though equivalent GetObject requests are denied. This issue is fixed in version 1.0.0-beta.12.","publishedAt":"2026-08-12T14:46:20.042Z","updatedAt":"2026-08-12T15:15:18.171Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["rustfs rustfs"],"affected":[{"vendor":"rustfs","product":"rustfs","versions":[{"version":"< 1.0.0-beta.12","status":"affected"}]}],"references":["https://github.com/rustfs/rustfs/security/advisories/GHSA-x298-9x87-fvjq","https://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb","https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73290.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73290","state":"PUBLISHED","datePublished":"2026-08-12T14:46:20.042Z","dateUpdated":"2026-08-12T15:15:18.171Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-11T19:42:11.450Z"},"containers":{"cna":{"title":"RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket fallback","descriptions":[{"lang":"en","value":"RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, an anonymous ListObjectVersions request in rustfs/src/storage/access.rs that lacks a direct bucket-policy grant falls back to an s3:ListBucket check and returns before the policy_allowed path applies deny_anonymous_table_data_plane_if_needed and RestrictPublicBuckets, so a bucket that permits anonymous listing can continue exposing version listings after an operator enables the public-access control. The bypass affects GET /<bucket>?versions= and can disclose object version metadata even though equivalent GetObject requests are denied. This issue is fixed in version 1.0.0-beta.12."}],"affected":[{"vendor":"rustfs","product":"rustfs","versions":[{"version":"< 1.0.0-beta.12","status":"affected"}]}],"references":[{"url":"https://github.com/rustfs/rustfs/security/advisories/GHSA-x298-9x87-fvjq","name":"https://github.com/rustfs/rustfs/security/advisories/GHSA-x298-9x87-fvjq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb","name":"https://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb","tags":["x_refsource_MISC"]},{"url":"https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12","name":"https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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":"2026-08-12T14:46:20.042Z"},"source":{"advisory":"GHSA-x298-9x87-fvjq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/rustfs/rustfs/security/advisories/GHSA-x298-9x87-fvjq","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-12T15:14:50.737173Z","id":"CVE-2026-73290","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-12T15:15:18.171Z"}}]}}}