CriticalFix available
jackson-databind — security advisory
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig (aka shaded hikari-config).
- Products
- jackson-databind
- Affected versions
- 2.10.0-2, 2.10.1-1, 2.10.2-1, 2.2.2-1, 2.2.2-1ubuntu0.1~esm1, 2.4.2-2, 2.4.2-3, 2.4.2-3ubuntu0.1~esm1, 2.8.6-1, 2.9.1-1, 2.9.4-1, 2.9.5-1, 2.9.8-1~18.04, 2.9.9.3-1
- Fixed versions
- 2.4.2-3ubuntu0.1~esm2
- CVEs
- CVE-2020-9546
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:03 UTC · Revision 1
Source evidence
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig (aka shaded hikari-config).
osv:UBUNTU-CVE-2020-9546
jackson-databind
Fixed versions: Not specified
jackson-databind
Fixed versions: 2.4.2-3ubuntu0.1~esm2
jackson-databind
Fixed versions: Not specified
jackson-databind
Fixed versions: Not specified
Complete source record
{
"id": "ee59f6870ad7ad4fa13e1c59cf5a4d516f1a57c33f0aff09cbec448635e7be48",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-9546",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2020-9546",
"summary": "FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig (aka shaded hikari-config).",
"evidence": "osv:UBUNTU-CVE-2020-9546",
"products": [
{
"name": {
"value": "jackson-databind",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.2.2-1ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "jackson-databind",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.2-3ubuntu0.1~esm2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "2.4.2-2",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.2-3",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.2-3ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "jackson-databind",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.8.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.9.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.9.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.9.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.9.8-1~18.04",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "jackson-databind",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.9.9.3-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.10.0-2",
"evidence": "/affected/3/versions"
},
{
"value": "2.10.1-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.10.2-1",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2020-9546",
"aliases": [
"UBUNTU-CVE-2020-9546"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jackson-databind",
"purl": "pkg:deb/ubuntu/jackson-databind?arch=source&distro=esm-infra-legacy%2Ftrusty",
"ecosystem": "Ubuntu:Pro:14.04:LTS"
},
"versions": [
"2.2.2-1",
"2.2.2-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9546.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjackson2-databind-java",
"binary_version": "2.2.2-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.2-3ubuntu0.1~esm2"
}
]
}
],
"package": {
"name": "jackson-databind",
"purl": "pkg:deb/ubuntu/jackson-databind?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"2.4.2-2",
"2.4.2-3",
"2.4.2-3ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9546.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjackson2-databind-java",
"binary_version": "2.4.2-3ubuntu0.1~esm2"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jackson-databind",
"purl": "pkg:deb/ubuntu/jackson-databind?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"2.8.6-1",
"2.9.1-1",
"2.9.4-1",
"2.9.5-1",
"2.9.8-1~18.04"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9546.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjackson2-databind-java",
"binary_version": "2.9.8-1~18.04"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jackson-databind",
"purl": "pkg:deb/ubuntu/jackson-databind?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"2.9.9.3-1",
"2.10.0-2",
"2.10.1-1",
"2.10.2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9546.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjackson2-databind-java",
"binary_version": "2.10.2-1"
}
]
}
}
],
"modified": "2026-10-08T19:46:17.782989406Z",
"provider": "osv",
"upstream": [
"CVE-2020-9546"
],
"references": [
"https://ubuntu.com/security/CVE-2020-9546",
"https://github.com/FasterXML/jackson-databind/issues/2631",
"https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062",
"https://ubuntu.com/security/notices/USN-4813-1",
"https://www.cve.org/CVERecord?id=CVE-2020-9546"
]
},
"related_cves": [
{
"value": "CVE-2020-9546",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 104496,
"published_at": "2020-03-02T04:15:00+00:00"
}