{"id":"CVE-2026-73509","state":"PUBLISHED","title":"OpenList: Authenticated users can rename files outside their base path via batch rename `src_name` traversal","description":"OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. This issue is fixed in version 4.2.4.","publishedAt":"2026-08-13T14:31:05.426Z","updatedAt":"2026-08-13T15:20:16.263Z","severity":{"score":7.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["OpenListTeam OpenList"],"affected":[{"vendor":"OpenListTeam","product":"OpenList","versions":[{"version":"< 4.2.4","status":"affected"}]}],"references":["https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75","https://github.com/OpenListTeam/OpenList/commit/651da18da4c647d96648d4bb64462baac1c37e04","https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73509.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73509","state":"PUBLISHED","datePublished":"2026-08-13T14:31:05.426Z","dateUpdated":"2026-08-13T15:20:16.263Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-12T19:00:33.736Z"},"containers":{"cna":{"title":"OpenList: Authenticated users can rename files outside their base path via batch rename `src_name` traversal","descriptions":[{"lang":"en","value":"OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. This issue is fixed in version 4.2.4."}],"affected":[{"vendor":"OpenListTeam","product":"OpenList","versions":[{"version":"< 4.2.4","status":"affected"}]}],"references":[{"url":"https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75","name":"https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OpenListTeam/OpenList/commit/651da18da4c647d96648d4bb64462baac1c37e04","name":"https://github.com/OpenListTeam/OpenList/commit/651da18da4c647d96648d4bb64462baac1c37e04","tags":["x_refsource_MISC"]},{"url":"https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4","name":"https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-13T14:31:05.426Z"},"source":{"advisory":"GHSA-95cv-r8x4-vh75","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T15:19:27.412169Z","id":"CVE-2026-73509","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-13T15:20:16.263Z"}}]}}}