CVE-2019-17531

CRITICAL

jackson-databind 2.0.0-2.9.10 - Remote Code Execution via Polymorphic Typing with Log4j JNDI

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2019-17531. PoCs published by dawetmaster, andikahilmy.

AI-analyzed exploit summary This repository contains a vulnerable version of Jackson Databind (2.9.0) that demonstrates CVE-2019-17531, a deserialization vulnerability. The included source code and build configuration allow for testing and reproducing the exploit.

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 apache-log4j-extra (version 1.2.x) jar in the classpath, and an attacker can provide a JNDI service to access, it is possible to make the service execute a malicious payload.

Exploits (2)

nomisec WORKING POC
by dawetmaster · poc
https://github.com/dawetmaster/CVE-2019-17531-jackson-databind-vulnerable

This repository contains a vulnerable version of Jackson Databind (2.9.0) that demonstrates CVE-2019-17531, a deserialization vulnerability. The included source code and build configuration allow for testing and reproducing the exploit.

Classification
Working Poc 95%
Attack Type
Deserialization
Complexity
Moderate
Reliability
Reliable
Target: Jackson Databind 2.9.0
No auth needed
Prerequisites: Java environment · Jackson Databind 2.9.0
devstral-2 · analyzed Mar 14, 2026 Full analysis →
nomisec WORKING POC
by andikahilmy · poc
https://github.com/andikahilmy/CVE-2019-17531-jackson-databind-vulnerable

This repository contains a vulnerable version of Jackson Databind (2.9.0) that demonstrates CVE-2019-17531, a deserialization vulnerability allowing arbitrary code execution. The included source code and build configuration enable testing of the exploit in a controlled environment.

Classification
Working Poc 90%
Attack Type
Deserialization
Complexity
Moderate
Reliability
Reliable
Target: Jackson Databind 2.9.0
No auth needed
Prerequisites: Vulnerable Jackson Databind version (2.9.0) in the target environment · Ability to send crafted JSON payloads to the target application
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (19)

Core 19
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:4192
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/12/msg00013.html
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/2498
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191024-0005/
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/cpujul2021.html

Scores

CVSS v3 9.8
EPSS 0.0119
EPSS Percentile 79.3%
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 (46)
com.fasterxml.jackson.core/jackson-databind 2.9.0 - 2.9.10.1Maven
debian/debian_linux 8.0
fasterxml/jackson-databind 2.0.0 - 2.6.7.3
netapp/oncommand_workflow_automation
netapp/steelstore_cloud_integrated_storage
oracle/banking_platform 2.4.0
oracle/banking_platform 2.4.1
oracle/banking_platform 2.5.0
oracle/banking_platform 2.6.0
oracle/banking_platform 2.6.1
... and 36 more
Published Oct 12, 2019
Tracked Since Feb 18, 2026