{"id":"CVE-2026-102663","sourceIdentifier":"security-advisories@github.com","published":"2026-10-12T19:16:36.190","lastModified":"2026-10-13T17:17:14.363","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"OpenList is a file list program that supports multiple storage backends. Prior to 4.2.4, the OpenList search API uses a non-separator-aware strings.HasPrefix comparison as a path containment authorization check when authorizing globally indexed Bleve results against a restricted user's BasePath. When Bleve search is enabled and a restricted authenticated user searches the global index for content in a sibling path, the user causes a globally indexed sibling-path result to pass the prefix check. The strings.HasPrefix(node.Parent, user.BasePath) predicate allows a sibling path such as /base2 to be treated as contained by /base. Unauthorized file metadata or file-existence information can be disclosed, and the backend Total value can reveal a match even when another access check removes the individual result. This issue is fixed in version 4.2.4."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"OpenListTeam","product":"OpenList","versions":[{"version":"< 4.2.4","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-13T16:00:59.279006Z","id":"CVE-2026-102663","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-200"},{"lang":"en","value":"CWE-639"}]}],"references":[{"url":"https://github.com/OpenListTeam/OpenList/commit/59bd3431408578f420895457554700cc9a52375a","source":"security-advisories@github.com"},{"url":"https://github.com/OpenListTeam/OpenList/commit/84ecda35aae2bd0020474086e6ddfd3aa2340679","source":"security-advisories@github.com"},{"url":"https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4","source":"security-advisories@github.com"},{"url":"https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-p6ph-3jx2-3337","source":"security-advisories@github.com"},{"url":"https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-p6ph-3jx2-3337","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}