{"id":"CVE-2021-31780","details":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","modified":"2026-08-07T16:57:21.215253Z","published":"2021-04-23T20:15:08.027Z","references":[{"type":"FIX","url":"https://github.com/MISP/MISP/commit/a0f08501d2850025892e703f40fb1570c7995478"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/misp/misp","events":[{"introduced":"92f2631c44e8f86924e51ec2e7413dd8e559c08d"},{"last_affected":"92f2631c44e8f86924e51ec2e7413dd8e559c08d"},{"fixed":"a0f08501d2850025892e703f40fb1570c7995478"}],"database_specific":{"cpe":"cpe:2.3:a:misp-project:misp:2.4.141:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.4.141"},{"last_affected":"2.4.141"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["2.4.141","v2.4.141"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31780.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}