Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-12086
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:00 UTC · Revision 1
Source evidence
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.
osv:CVE-2019-12086
Complete source record
{
"id": "87c45cb22c2a2436ab0ee82cff7990ffc96e853d4bf2f4cd870bf2d42163f611",
"url": "https://osv.dev/vulnerability/CVE-2019-12086",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-12086",
"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-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.",
"evidence": "osv:CVE-2019-12086",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-12086",
"aliases": [
"CVE-2019-12086",
"GHSA-5ww9-j83m-q7qx"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/fasterxml/jackson-databind",
"type": "GIT",
"events": [
{
"introduced": "e8df0987e3034d102ee6d704d30a05a2e3ac7089"
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{
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{
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{
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{
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{
"fixed": "a977aadc9c20f6f5be111b7feca7809acd195d25"
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"range": [
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{
"fixed": "2.6.7.3"
}
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"source": "CPE_RANGE"
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{
"cpe": "cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*",
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{
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{
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"range": [
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{
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{
"cpe": "cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*",
"range": [
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{
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],
"versions": [
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"jackson-databind-2.8.11.3",
"jackson-databind-2.7.9.5",
"jackson-databind-2.6.7.2",
"jackson-databind-2.9.7",
"jackson-databind-2.9.6",
"jackson-databind-2.8.11.2",
"jackson-databind-2.7.9.4",
"jackson-databind-2.9.5",
"jackson-databind-2.8.11.1",
"jackson-databind-2.7.9.3",
"jackson-databind-2.9.4",
"jackson-databind-2.8.11",
"jackson-databind-2.7.9.2",
"jackson-databind-2.9.3",
"jackson-databind-2.9.1",
"jackson-databind-2.8.10",
"jackson-databind-2.9.0",
"jackson-databind-2.6.7.1",
"jackson-databind-2.8.9",
"jackson-databind-2.8.8.1",
"jackson-databind-2.7.9.1",
"jackson-databind-2.8.8",
"jackson-databind-2.8.7",
"jackson-databind-2.7.9",
"jackson-databind-2.8.6",
"jackson-databind-2.8.5",
"jackson-databind-2.8.4",
"jackson-databind-2.7.8",
"jackson-databind-2.8.3",
"jackson-databind-2.8.2",
"jackson-databind-2.7.7",
"jackson-databind-2.7.6",
"jackson-databind-2.8.1",
"jackson-databind-2.8.0",
"jackson-databind-2.7.5",
"jackson-databind-2.6.7",
"jackson-databind-2.7.4",
"jackson-databind-2.6.6",
"jackson-databind-2.7.3",
"jackson-databind-2.7.2",
"jackson-databind-2.7.1-1",
"jackson-databind-2.7.1",
"jackson-databind-2.6.5",
"jackson-databind-2.7.0",
"jackson-databind-2.6.4",
"jackson-databind-2.6.3",
"jackson-databind-2.6.2",
"jackson-databind-2.6.1",
"jackson-databind-2.6.0",
"jackson-databind-2.6.0-rc4",
"2.6.0-rc3b",
"jackson-databind-2.6.0-rc1",
"jackson-databind-2.5.0",
"jackson-databind-2.5.0-rc1",
"jackson-databind-2.4.1.3",
"jackson-databind-2.4.1.2",
"jackson-databind-2.4.1.1",
"jackson-databind-2.4.1",
"jackson-databind-2.4.0",
"jackson-databind-2.4.0-rc3",
"jackson-databind-2.4.0-rc2",
"jackson-databind-2.4.0-rc1",
"jackson-databind-2.3.1",
"jackson-databind-2.3.0",
"jackson-databind-2.3.0-rc1",
"jackson-databind-2.2.2",
"jackson-databind-2.2.1",
"2.2.0c",
"jackson-databind-2.2.0",
"jackson-databind-2.1.1",
"jackson-databind-2.1.0",
"jackson-databind-2.0.2",
"jackson-databind-2.0.1",
"jackson-databind-2.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12086.json"
}
}
],
"modified": "2026-10-20T10:52:19.410073812Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/3f99ae8dcdbd69438cb733d745ee3ad5e852068490719a66509b4592%40%3Ccommits.cassandra.apache.org%3E",
"https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E",
"https://lists.apache.org/thread.html/88cd25375805950ae7337e669b0cb0eeda98b9604c1b8d806dccbad2%40%3Creviews.spark.apache.org%3E",
"https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E",
"https://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3E",
"https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E",
"https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5%40%3Csolr-user.lucene.apache.org%3E",
"https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E",
"https://lists.apache.org/thread.html/rda99599896c3667f2cc9e9d34c7b6ef5d2bbed1f4801e1d75a2b0679%40%3Ccommits.nifi.apache.org%3E",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OVRZDN2T6AZ6DJCZJ3VSIQIVHBVMVWBL/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXRVXNRFHJSQWFHPRJQRI5UPMZ63B544/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKUALE2TUCKEKOHE2D342PQXN4MWCSLC/",
"https://medium.com/%40cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062",
"https://access.redhat.com/errata/RHSA-2019:2858",
"https://access.redhat.com/errata/RHSA-2019:2935",
"https://access.redhat.com/errata/RHSA-2019:2936",
"https://access.redhat.com/errata/RHSA-2019:2937",
"https://access.redhat.com/errata/RHSA-2019:2938",
"https://access.redhat.com/errata/RHSA-2019:2998",
"https://access.redhat.com/errata/RHSA-2019:3044",
"https://access.redhat.com/errata/RHSA-2019:3045",
"https://access.redhat.com/errata/RHSA-2019:3046",
"https://access.redhat.com/errata/RHSA-2019:3050",
"https://access.redhat.com/errata/RHSA-2019:3149",
"https://access.redhat.com/errata/RHSA-2019:3200",
"https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.9.9",
"https://lists.debian.org/debian-lts-announce/2019/05/msg00030.html",
"https://seclists.org/bugtraq/2019/May/68",
"https://security.netapp.com/advisory/ntap-20190530-0003/",
"https://www.debian.org/security/2019/dsa-4452",
"https://www.oracle.com/security-alerts/cpuApr2021.html",
"https://www.oracle.com/security-alerts/cpuapr2020.html",
"https://www.oracle.com/security-alerts/cpuapr2022.html",
"https://www.oracle.com/security-alerts/cpujan2020.html",
"https://www.oracle.com/security-alerts/cpujul2020.html",
"https://www.oracle.com/security-alerts/cpuoct2020.html",
"https://github.com/FasterXML/jackson-databind/issues/2326",
"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html",
"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-12086",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383559,
"published_at": "2019-05-17T17:29:00.483+00:00"
}