--- 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' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2935' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2936' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2937' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2938' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2998' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3044' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3045' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3046' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3050' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3149' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3200' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://github.com/FasterXML/jackson-databind/issues/2326' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.9.9' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/3f99ae8dcdbd69438cb733d745ee3ad5e852068490719a66509b4592%40%3Ccommits.cassandra.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/88cd25375805950ae7337e669b0cb0eeda98b9604c1b8d806dccbad2%40%3Creviews.spark.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5%40%3Csolr-user.lucene.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/rda99599896c3667f2cc9e9d34c7b6ef5d2bbed1f4801e1d75a2b0679%40%3Ccommits.nifi.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2019/05/msg00030.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OVRZDN2T6AZ6DJCZJ3VSIQIVHBVMVWBL/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXRVXNRFHJSQWFHPRJQRI5UPMZ63B544/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKUALE2TUCKEKOHE2D342PQXN4MWCSLC/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://medium.com/%40cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062 label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://seclists.org/bugtraq/2019/May/68' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20190530-0003/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.debian.org/security/2019/dsa-4452' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuApr2021.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuapr2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpujan2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpujul2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuoct2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.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' --- ## Overview 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-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. ## 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` ## Remediation Upgrade past the affected range: - `jackson-databind 2.9.9`