CVE-2019-16942

CRITICAL

jackson-databind 2.0.0-2.9.10 - Remote Code Execution via Polymorphic Typing

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2019-16942. PoCs published by dawetmaster, andikahilmy.

AI-analyzed exploit summary This repository appears to be a partial or incomplete copy of the Jackson Databind library without any exploit code or technical analysis related to CVE-2019-16942. It lacks a functional PoC or detailed writeup.

Description

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 commons-dbcp (1.4) 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 org.apache.commons.dbcp.datasources.SharedPoolDataSource and org.apache.commons.dbcp.datasources.PerUserPoolDataSource mishandling.

Exploits (2)

nomisec STUB
by dawetmaster · poc
https://github.com/dawetmaster/CVE-2019-16942-jackson-databind-vulnerable

This repository appears to be a partial or incomplete copy of the Jackson Databind library without any exploit code or technical analysis related to CVE-2019-16942. It lacks a functional PoC or detailed writeup.

Classification
Stub 95%
Attack Type
Deserialization
Complexity
Theoretical
Reliability
Theoretical
Target: Jackson Databind (versions affected by CVE-2019-16942)
No auth needed
Prerequisites: None identified
devstral-2 · analyzed Mar 14, 2026 Full analysis →
nomisec STUB
by andikahilmy · poc
https://github.com/andikahilmy/CVE-2019-16942-jackson-databind-vulnerable

This repository appears to be a partial or incomplete copy of the Jackson Databind library without any exploit code or technical analysis related to CVE-2019-16942. It lacks a functional PoC or detailed writeup.

Classification
Stub 95%
Attack Type
Deserialization
Complexity
Theoretical
Reliability
Theoretical
Target: Jackson Databind (versions affected by CVE-2019-16942)
No auth needed
Prerequisites: Vulnerable version of Jackson Databind · Ability to send crafted JSON payloads
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (29)

Core 29
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/10/msg00001.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4542
Issue Tracking, Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Oct/6
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:3901
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0164
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0159
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0160
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0161
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0445
Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuapr2020.html
Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujul2020.html
Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujan2020.html
Patch, Third Party Advisory x_refsource_misc
https://github.com/FasterXML/jackson-databind/issues/2478
Issue Tracking, Third Party Advisory x_refsource_misc
https://issues.apache.org/jira/browse/GEODE-7255
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191017-0006/
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuoct2020.html
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuApr2021.html
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com//security-alerts/cpujul2021.html

Scores

CVSS v3 9.8
EPSS 0.0042
EPSS Percentile 62.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-502
Status published
Products (49)
com.fasterxml.jackson.core/jackson-databind 2.9.0 - 2.9.10.1Maven
debian/debian_linux 8.0
debian/debian_linux 9.0
debian/debian_linux 10.0
fasterxml/jackson-databind 2.0.0 - 2.6.7.3
fedoraproject/fedora 30
fedoraproject/fedora 31
netapp/active_iq_unified_manager 7.3 (2 CPE variants)
netapp/active_iq_unified_manager 9.5
netapp/oncommand_api_services
... and 39 more
Published Oct 01, 2019
Tracked Since Feb 18, 2026