{"id":"CVE-2026-123317","aliases":["EUVD-2026-118081","GHSA-76h9-4mx5-8c9v"],"status":"published","title":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","description":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00204,"percentile":0.10504,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2026-11-06T10:28:04Z","modified":"2026-11-06T12:30:41Z","products":[{"vendor":"jetbrains","product":"ktor"}],"references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123317"},{"url":"https://www.jetbrains.com/privacy-security/issues-fixed"},{"url":"https://github.com/advisories/GHSA-76h9-4mx5-8c9v"}],"sources":{"cve":[{"id":"CVE-2026-123317","description":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","status":"published","published":"2026-11-06T10:28:04.482Z","modified":"2026-11-07T18:26:28.288Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-354"],"updated_at":"2026-11-07T05:32:42.683254Z"}],"euvd":[{"id":"EUVD-2026-118081","description":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","status":"published","published":"2026-11-06T10:28:04Z","modified":"2026-11-07T18:26:28Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-07T06:08:30.731226Z"}],"ghsa":[{"id":"GHSA-76h9-4mx5-8c9v","title":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","description":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","status":"published","published":"2026-11-06T12:30:41Z","modified":"2026-11-06T12:30:41Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-354"],"updated_at":"2026-11-06T13:00:04.317934Z"}],"nvd":[{"id":"CVE-2026-123317","description":"In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies","status":"published","published":"2026-11-06T11:17:11.17Z","modified":"2026-11-07T19:17:27.027Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-354"],"updated_at":"2026-11-07T00:02:36.552517Z"}]}}