{"id":"CVE-2026-104912","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-104912","generatedAt":"2026-10-28T02:24:07.639Z","title":"Impact: - Confidentiality: exposure of attribute values and event metadata that the user is not authorized to access.","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check becomes incorrect when an event is subsequently restricted (for example, its sharing group is changed or it is unpublished).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.","published":"2026-10-02T16:16:49.000Z","lastModified":"2026-10-03T16:16:35.000Z","status":"Deferred","sourceIdentifier":"5a6e4751-2f3f-4070-9419-94fb35b644e8","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-284","CWE-862"],"affected":[],"epss":{"score":0.00207,"percentile":0.1071,"date":"2026-10-26","history":[{"date":"2026-10-03","score":0.00207,"percentile":0.09775}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-02T16:16:49.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-10-02T16:16:49.047Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://github.com/MISP/MISP/commit/100235bd9","source":"5a6e4751-2f3f-4070-9419-94fb35b644e8"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-104912","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}