{"id":"CVE-2018-11385","aliases":["DEBIAN-CVE-2018-11385","DLA-1707-1","DSA-4262-1","EUVD-2022-3887","GHSA-g4rg-rw65-8hfg","UBUNTU-CVE-2018-11385"],"status":"published","title":"Symfony Session Fixation Vulnerability","description":"An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. A session fixation vulnerability within the \"Guard\" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01974,"percentile":0.8059,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-384"],"published":"2018-06-13T16:00:00Z","modified":"2026-10-24T10:31:00Z","fixes":[{"ecosystem":"Packagist","package":"symfony/symfony","fixed_in":["2.7.48","2.8.41","3.4.11","4.0.11","3.3.17"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"symfony/security-http","fixed_in":["2.7.48","2.8.41","3.3.17","3.4.11","4.0.11"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"symfony/security","fixed_in":["2.7.48","2.8.41","3.3.17","3.4.11","4.0.11"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"symfony","fixed_in":["3.4.12+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"symfony","fixed_in":["3.4.12+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"symfony","fixed_in":["3.4.12+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.0"},{"fixed":"2.7.48"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.8.0"},{"fixed":"2.8.41"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"fixed":"3.4.11"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.0.11"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.3.17"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.0"},{"fixed":"2.7.48"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.8.0"},{"fixed":"2.8.41"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.3.17"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"fixed":"3.4.11"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.0.11"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.0"},{"fixed":"2.7.48"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.8.0"},{"fixed":"2.8.41"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.3.17"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"fixed":"3.4.11"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/security","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.0.11"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.12+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.12+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.12+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.21+dfsg-4+deb8u4"}]}],"versions":["2.3.21+dfsg-4","2.3.21+dfsg-4+deb8u1","2.3.21+dfsg-4+deb8u2","2.3.21+dfsg-4+deb8u3"],"bundled":7},{"source":"osv","ecosystem":"Debian:9","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.7+dfsg-1.3+deb9u1"}]}],"versions":["2.8.7+dfsg-1.3"],"bundled":8},{"source":"osv","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.0"},{"fixed":"2.7.48"}]}],"versions":["v2.7.0","v2.7.1","v2.7.10","v2.7.11","v2.7.12","v2.7.13","v2.7.14","v2.7.15","v2.7.16","v2.7.17","v2.7.18","v2.7.19","v2.7.2","v2.7.20","v2.7.21","v2.7.22","v2.7.23","v2.7.24","v2.7.25","v2.7.26","v2.7.27","v2.7.28","v2.7.29","v2.7.3","v2.7.30","v2.7.31","v2.7.32","v2.7.33","v2.7.34","v2.7.35","v2.7.36","v2.7.37","v2.7.38","v2.7.39","v2.7.4","v2.7.40","v2.7.41","v2.7.42","v2.7.43","v2.7.44","v2.7.45","v2.7.46","v2.7.4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issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. 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A session fixation vulnerability within the \"Guard\" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.","status":"published","published":"2018-06-13T16:00:00Z","modified":"2024-08-05T08:10:13Z","updated_at":"2026-11-03T02:39:55.512487Z"}],"ghsa":[{"id":"GHSA-g4rg-rw65-8hfg","title":"Symfony Session Fixation Vulnerability","description":"An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. 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A session fixation vulnerability within the \"Guard\" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.","status":"published","published":"2018-06-13T16:29:00.437Z","modified":"2026-06-17T01:35:50.693Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-384"],"updated_at":"2026-11-02T14:04:29.837913Z"}],"osv":[{"id":"CVE-2018-11385","description":"An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. A session fixation vulnerability within the \"Guard\" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.","status":"published","published":"2018-06-13T16:29:00.437Z","modified":"2026-10-24T10:31:00.977351309Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:07.934182Z"},{"id":"DEBIAN-CVE-2018-11385","description":"An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. 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A session fixation vulnerability within the \"Guard\" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.","status":"published","published":"2018-06-13T16:29:00Z","modified":"2025-10-24T04:47:02Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:16.544091Z"},{"id":"DLA-1707-1","title":"symfony - security update","status":"published","published":"2019-03-09T00:00:00Z","modified":"2026-03-09T01:21:05.654854Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DSA-4262-1","title":"symfony - security update","status":"published","published":"2018-08-03T00:00:00Z","modified":"2026-03-09T02:10:49.726769Z","updated_at":"2026-11-02T15:46:16.862196Z"}]}}