{"id":"CVE-2021-27904","title":"An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139","summary":"An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the \"all org\" flag sometimes provided view access to unintended actors.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","vendor":"misp-project","product":"misp","affected":["misp <= 2.4.139"],"published":"2021-03-02","updated":"2026-06-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-27904","references":[{"url":"https://github.com/MISP/MISP/commit/ca13fee271ad126832c88896776f3050a6c06e64","label":"cve@mitre.org"},{"url":"https://github.com/MISP/MISP/commit/ca13fee271ad126832c88896776f3050a6c06e64","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.0029,"epssPercentile":0.2178,"ingestedAt":"2026-06-29T13:24:33.472Z","slug":"CVE-2021-27904","body":"## Overview\n\nAn issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the \"all org\" flag sometimes provided view access to unintended actors.\n\n## Affected\n\n- `misp <= 2.4.139`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}