{"id":"CVE-2026-86478","aliases":["EUVD-2026-72494","GHSA-w44j-qc22-m82h"],"status":"published","title":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack...","description":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00606,"percentile":0.49444,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-290"],"published":"2026-09-07T16:26:40Z","modified":"2026-09-09T05:18:19Z","exploits":[{"source":"pocgithub","id":"LHeiakim/CVE-2026-86478-PoC","title":"LHeiakim/CVE-2026-86478-PoC","date":"2026-10-21","url":"https://github.com/LHeiakim/CVE-2026-86478-PoC"}],"products":[{"vendor":"jetbrains","product":"youtrack"}],"references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86478"},{"url":"https://www.jetbrains.com/privacy-security/issues-fixed"},{"url":"https://github.com/advisories/GHSA-w44j-qc22-m82h"}],"sources":{"cve":[{"id":"CVE-2026-86478","description":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address","status":"published","published":"2026-09-07T16:26:40.709Z","modified":"2026-09-09T04:25:56.54Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T13:49:42.666099Z"}],"euvd":[{"id":"EUVD-2026-72494","description":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address","status":"published","published":"2026-09-07T16:26:40Z","modified":"2026-09-09T04:25:56Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:28.121378Z"}],"ghsa":[{"id":"GHSA-w44j-qc22-m82h","title":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack...","description":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address","status":"published","published":"2026-09-07T18:31:32Z","modified":"2026-09-07T18:31:36Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:11:27.182088Z"}],"nvd":[{"id":"CVE-2026-86478","description":"In JetBrains YouTrack before 2025.3.161254, \n2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address","status":"published","published":"2026-09-07T17:17:25.92Z","modified":"2026-09-09T05:18:19.617Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:12:44.436435Z"}]}}