jackson-databind — security advisory
A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the p6spy (3.8.6) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of com.p6spy.engine.spy.P6DataSource mishandling.
- Products
- jackson-databind
- Affected versions
- Not specified
- Fixed versions
- 2.10.0-2
- CVEs
- CVE-2019-16943
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:03 UTC · Revision 1
Source evidence
A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the p6spy (3.8.6) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of com.p6spy.engine.spy.P6DataSource mishandling.
osv:DEBIAN-CVE-2019-16943
jackson-databind
Fixed versions: 2.10.0-2
jackson-databind
Fixed versions: 2.10.0-2
jackson-databind
Fixed versions: 2.10.0-2
Complete source record
{
"id": "888411a47340d9d037a2af85eb1fd6e180c0ced2a18c2f1f83edc23e99d4ef4a",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2019-16943",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2019-16943",
"summary": "A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the p6spy (3.8.6) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of com.p6spy.engine.spy.P6DataSource mishandling.",
"evidence": "osv:DEBIAN-CVE-2019-16943",
"products": [
{
"name": {
"value": "jackson-databind",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.10.0-2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "jackson-databind",
"evidence": "/affected/1/package/name"
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"fixed_versions": [
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"evidence": "/affected/1/ranges"
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"affected_versions": []
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{
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"fixed_versions": [
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"evidence": "/affected/2/ranges"
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],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2019-16943",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
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"events": [
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"package": {
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"purl": "pkg:deb/debian/jackson-databind?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-16943.json"
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"ecosystem_specific": {
"urgency": "not yet assigned"
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},
{
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"package": {
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"purl": "pkg:deb/debian/jackson-databind?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-16943.json"
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"ecosystem_specific": {
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{
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],
"package": {
"name": "jackson-databind",
"purl": "pkg:deb/debian/jackson-databind?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-16943.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-08T09:47:38.143432255Z",
"provider": "osv",
"upstream": [
"CVE-2019-16943"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2019-16943"
]
},
"related_cves": [
{
"value": "CVE-2019-16943",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 98917,
"published_at": "2019-10-01T17:15:10.4+00:00"
}