{"id":"CVE-2026-104912","published":"2026-10-02T16:16:49.047","lastModified":"2026-10-03T16:16:35.000","description":"MISP contains an authorization flaw in its correlation handling during attribute searches. When a user performs an attribute search that triggers correlation lookups, the system authorized access to correlated attributes and events based on a stale distribution snapshot stored on the correlation row rather than the live event access control list.\n\nBecause the correlation row's distribution columns are a point-in-time copy that lacks a published flag, the authorization check becomes incorrect when an event is subsequently restricted (for example, its sharing group is changed or it is unpublished). As a result, an authenticated user could retrieve attributes and event details belonging to events they no longer have permission to view.\n\nPreconditions:\n\n- An authenticated user with at least read access to some events in the instance.\n\n- The existence of correlations between events, at least one of which has been restricted after the correlation was created.\n\nImpact:\n\n- Confidentiality: exposure of attribute values and event metadata that the user is not authorized to access.\n\nAffected versions: MISP prior to v2.5.48.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-284","CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/MISP/MISP/commit/100235bd9","tags":[]}],"exploitRefs":[{"url":"https://github.com/MISP/MISP/commit/100235bd9","tags":[]}],"hasPoc":true,"ai":null}