{"id":"CVE-2019-18889","aliases":["DEBIAN-CVE-2019-18889","EUVD-2019-0785","GHSA-79gr-58r3-pwm3","UBUNTU-CVE-2019-18889"],"status":"published","title":"Symfony Unsafe Cache Serialization Could Enable RCE","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.33247,"percentile":0.98379,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-94"],"published":"2019-11-21T22:21:42Z","modified":"2026-10-24T10:47:42Z","fixes":[{"ecosystem":"Packagist","package":"symfony/cache","fixed_in":["3.4.35","4.2.12","4.3.8"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"symfony/symfony","fixed_in":["3.4.35","4.2.12","4.3.8"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"symfony","fixed_in":["4.3.8+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"symfony","fixed_in":["4.3.8+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"symfony","fixed_in":["4.3.8+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"symfony/cache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.4.35"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/cache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.2.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/cache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.3.0"},{"fixed":"4.3.8"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.4.35"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.2.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.3.0"},{"fixed":"4.3.8"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.8+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.8+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.8+dfsg-1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"symfony/cache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.4.35"}]}],"versions":["v3.1.0","v3.1.1","v3.1.10","v3.1.2","v3.1.3","v3.1.4","v3.1.5","v3.1.6","v3.1.7","v3.1.8","v3.1.9","v3.2.0","v3.2.0-BETA1","v3.2.0-RC1","v3.2.0-RC2","v3.2.1","v3.2.10","v3.2.11","v3.2.12","v3.2.13","v3.2.14","v3.2.2","v3.2.3","v3.2.4","v3.2.5","v3.2.6","v3.2.7","v3.2.8","v3.2.9","v3.3.0","v3.3.0-BETA1","v3.3.0-RC1","v3.3.1","v3.3.10","v3.3.11","v3.3.12","v3.3.13","v3.3.14","v3.3.15","v3.3.16","v3.3.17","v3.3.18","v3.3.2","v3.3.3","v3.3.4","v3.3.5","v3.3.6","v3.3.7","v3.3.8","v3.3.9","v3.4.0","v3.4.0-BETA1","v3.4.0-BETA2","v3.4.0-BETA3","v3.4.0-BETA4","v3.4.0-RC1","v3.4.0-RC2","v3.4.1","v3.4.10","v3.4.11","v3.4.12","v3.4.13","v3.4.14","v3.4.15","v3.4.16","v3.4.17","v3.4.18","v3.4.19","v3.4.2","v3.4.20","v3.4.21","v3.4.22","v3.4.23","v3.4.24","v3.4.25","v3.4.26","v3.4.27","v3.4.28","v3.4.29","v3.4.3","v3.4.30","v3.4.31","v3.4.32","v3.4.33","v3.4.34","v3.4.4","v3.4.5","v3.4.6","v3.4.7","v3.4.8","v3.4.9"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/cache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.2.12"}]}],"versions":["v4.0.0","v4.0.1","v4.0.10","v4.0.11","v4.0.12","v4.0.13","v4.0.14","v4.0.15","v4.0.2","v4.0.3","v4.0.4","v4.0.5","v4.0.6","v4.0.7","v4.0.8","v4.0.9","v4.1.0","v4.1.0-BETA1","v4.1.0-BETA2","v4.1.0-BETA3","v4.1.1","v4.1.10","v4.1.11","v4.1.12","v4.1.2","v4.1.3","v4.1.4","v4.1.5","v4.1.6","v4.1.7","v4.1.8","v4.1.9","v4.2.0","v4.2.0-BETA1","v4.2.0-BETA2","v4.2.0-RC1","v4.2.1","v4.2.10","v4.2.11","v4.2.2","v4.2.3","v4.2.4","v4.2.5","v4.2.6","v4.2.7","v4.2.8","v4.2.9"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/cache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.3.0"},{"fixed":"4.3.8"}]}],"versions":["v4.3.0","v4.3.1","v4.3.2","v4.3.3","v4.3.4","v4.3.5","v4.3.6","v4.3.7"]},{"source":"osv","ecosystem":"Packagist","package":"symfony/symfony","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.4.35"}]}],"versions":["v3.1.0","v3.1.1","v3.1.10","v3.1.2","v3.1.3","v3.1.4","v3.1.5","v3.1.6","v3.1.7","v3.1.8","v3.1.9","v3.2.0","v3.2.0-BETA1","v3.2.0-RC1","v3.2.0-RC2","v3.2.1","v3.2.10","v3.2.11","v3.2.12","v3.2.13","v3.2.14","v3.2.2","v3.2.3","v3.2.4","v3.2.5","v3.2.6","v3.2.7","v3.2.8","v3.2.9","v3.3.0","v3.3.0-BETA1","v3.3.0-RC1","v3.3.1","v3.3.10","v3.3.11","v3.3.12","v3.3.13","v3.3.14","v3.3.15","v3.3.16","v3.3.17","v3.3.18","v3.3.2","v3.3.3","v3.3.4","v3.3.5","v3.3.6","v3.3.7","v3.3.8","v3.3.9","v3.4.0","v3.4.0-BETA1","v3.4.0-BETA2","v3.4.0-BETA3","v3.4.0-BETA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Notes","advisory","web"]},{"url":"https://github.com/symfony/symfony/releases/tag/v4.3.8","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","advisory","web"]},{"url":"https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18889","tags":["advisory"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2019-18889.yaml","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18889.yaml","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/"},{"url":"https://symfony.com/cve-2019-18889","tags":["web"]},{"url":"https://github.com/advisories/GHSA-79gr-58r3-pwm3"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-18889","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2019-18889","tags":["report"]},{"url":"https://github.com/symfony/symfony/commit/8817d28fcaacb31fe01d267f6e19b44d8179395a","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-18889","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-18889","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-11-21T22:21:42Z","modified":"2024-08-05T02:02:39.552Z","updated_at":"2026-11-02T14:32:23.485011Z"}],"euvd":[{"id":"EUVD-2019-0785","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-11-21T22:21:42Z","modified":"2024-08-05T02:02:39Z","updated_at":"2026-11-03T02:40:27.303586Z"}],"ghsa":[{"id":"GHSA-79gr-58r3-pwm3","title":"Symfony Unsafe Cache Serialization Could Enable RCE","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-12-02T18:07:16Z","modified":"2024-02-01T15:48:34Z","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-94"],"updated_at":"2026-11-02T14:37:34.405364Z"}],"nvd":[{"id":"CVE-2019-18889","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-11-21T23:15:13.607Z","modified":"2026-06-17T02:25:32.067Z","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":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:05:37.024431Z"}],"osv":[{"id":"CVE-2019-18889","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-11-21T23:15:13.607Z","modified":"2026-10-24T10:47:42.308099079Z","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":"2026-11-02T15:44:11.673963Z"},{"id":"DEBIAN-CVE-2019-18889","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-11-21T23:15:13.607Z","modified":"2026-09-21T07:01:54.484528001Z","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":"2026-11-02T15:45:31.867036Z"},{"id":"GHSA-79gr-58r3-pwm3","title":"Symfony Unsafe Cache Serialization Could Enable RCE","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-12-02T18:07:16Z","modified":"2024-02-20T05:31:10.885183Z","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-94"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"UBUNTU-CVE-2019-18889","description":"An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.","status":"published","published":"2019-11-21T23:15:00Z","modified":"2025-10-24T04:47:58Z","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":"2026-11-02T15:54:20.325378Z"}]}}