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OpenAdvisories
High · 7.5 Public exploit CVE-2019-14439 EUVD-2019-0634GHSA-gwp4-hfv6-p7hw

Deserialization of untrusted data in FasterXML jackson-databind

Published Jul 30, 2019 · Updated Oct 8, 2026 · Assigned by mitre

Description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 jackson-databind 2.9.9.3-1 —
Debian 13 jackson-databind 2.9.9.3-1 —
Debian 12 jackson-databind 2.9.9.3-1 —
Debian 10 jackson-databind 2.9.8-3+deb10u1 DSA-4542-1
Debian 9 jackson-databind 2.8.6-1+deb9u6 DSA-4542-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Debian 8 jackson-databind 2.4.2-2+deb8u8 DLA-1879-1
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS jackson-databind No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 16.04 LTS jackson-databind 2.4.2-3ubuntu0.1~esm2 USN-4813-1
Ubuntu Pro 14.04 LTS jackson-databind No fix yet —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Maven com.fasterxml.jackson.core:jackson-databind >= 2.9.0, < 2.9.9.2 2.9.9.2 GHSA-gwp4-hfv6-p7hw
Maven com.fasterxml.jackson.core:jackson-databind >= 2.8.0, < 2.8.11.4 2.8.11.4 GHSA-gwp4-hfv6-p7hw
Maven com.fasterxml.jackson.core:jackson-databind >= 2.7.0, < 2.7.9.6 2.7.9.6 GHSA-gwp4-hfv6-p7hw
Maven com.fasterxml.jackson.core:jackson-databind < 2.6.7.3 2.6.7.3 GHSA-gwp4-hfv6-p7hw

Advisories 4

References