{"id":"CVE-2019-12086","title":"A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9","summary":"A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-conn…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-502"],"vendor":"fasterxml","product":"jackson-databind","affected":["jackson-databind >= 2.0.0, < 2.6.7.3","jackson-databind >= 2.7.0, < 2.7.9.6","jackson-databind >= 2.8.0, < 2.8.11.4","jackson-databind >= 2.9.0, < 2.9.9","debian_linux = 8.0","debian_linux = 9.0"],"patched":["jackson-databind 2.9.9"],"published":"2019-05-17","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:10.960","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-12086","references":[{"url":"http://russiansecurity.expert/2016/04/20/mysql-connect-file-read/","label":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/109227","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2858","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2935","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2936","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2937","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2938","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2998","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:3044","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:3045","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:3046","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:3050","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:3149","label":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:3200","label":"cve@mitre.org"},{"url":"https://github.com/FasterXML/jackson-databind/issues/2326","label":"cve@mitre.org"},{"url":"https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.9.9","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/3f99ae8dcdbd69438cb733d745ee3ad5e852068490719a66509b4592%40%3Ccommits.cassandra.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/88cd25375805950ae7337e669b0cb0eeda98b9604c1b8d806dccbad2%40%3Creviews.spark.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5%40%3Csolr-user.lucene.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/rda99599896c3667f2cc9e9d34c7b6ef5d2bbed1f4801e1d75a2b0679%40%3Ccommits.nifi.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/05/msg00030.html","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OVRZDN2T6AZ6DJCZJ3VSIQIVHBVMVWBL/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXRVXNRFHJSQWFHPRJQRI5UPMZ63B544/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKUALE2TUCKEKOHE2D342PQXN4MWCSLC/","label":"cve@mitre.org"},{"url":"https://medium.com/%40cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062","label":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/May/68","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20190530-0003/","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2019/dsa-4452","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuApr2021.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpujan2020.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","label":"cve@mitre.org"},{"url":"http://russiansecurity.expert/2016/04/20/mysql-connect-file-read/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/109227","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:2858","l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5072835.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available"],"epss":0.21949,"epssPercentile":0.97601,"exploits":{"github":2,"githubRepos":["https://github.com/motoyasu-saburi/CVE-2019-12086-jackson-databind-file-read","https://github.com/Al1ex/CVE-2019-12086"],"checkedAt":"2026-10-08T22:12:29.976Z"},"exploitAvailable":true,"ingestedAt":"2026-10-08T22:11:53.697Z","slug":"CVE-2019-12086","body":"## Overview\n\nA Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.\n\n## Affected\n\n- `jackson-databind >= 2.0.0, < 2.6.7.3`\n- `jackson-databind >= 2.7.0, < 2.7.9.6`\n- `jackson-databind >= 2.8.0, < 2.8.11.4`\n- `jackson-databind >= 2.9.0, < 2.9.9`\n- `debian_linux = 8.0`\n- `debian_linux = 9.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `jackson-databind 2.9.9`","depth":"midnight","depthScore":58,"depthScoreParts":{"impact":41.3,"likelihood":4.4,"exploitation":12,"ransomware":0},"changes":[]}