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Fencer Vulns
critical 9.8

CVE-2019-16943 json

jackson-databind polymorphic typing issue

published 2019-10-01 7 y ago modified 2026-10-07 32 d ago also GHSA-fmmc-742q-jg75 , EUVD-2019-0747

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

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.

Patch / fix

  • maven com.fasterxml.jackson.core:jackson-databind 2.6.7.3, 2.8.11.5, 2.9.10.1
  • fasterxml jackson-databind 2.6.7.3, 2.8.11.5, 2.9.10.1
  • jackson-databind Debian 14, Debian 13, Debian 12 2.10.0-2

debian advisories DEBIAN-CVE-2019-16943

  • jackson-databind Ubuntu Pro 16.04 LTS 2.4.2-3ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2019-16943

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • eap7-netty jboss enterprise application platform 7.2 4.1.42-1.Final_redhat_00001.1.el8eap
  • eap7-jberet jboss enterprise application platform 7.2 1.3.5-1.Final_redhat_00001.1.el8eap
  • eap7-wildfly jboss enterprise application platform 7.2 7.2.6-5.GA_redhat_00001.1.el8eap
  • eap7-undertow jboss enterprise application platform 7.2 2.0.28-2.SP1_redhat_00001.1.el8eap
  • eap7-weld-ejb jboss enterprise application platform 7.2 3.0.6-3.Final_redhat_00003.1.el8eap
  • eap7-weld-jta jboss enterprise application platform 7.2 3.0.6-3.Final_redhat_00003.1.el8eap
  • eap7-weld-web jboss enterprise application platform 7.2 3.0.6-3.Final_redhat_00003.1.el8eap
  • eap7-hibernate jboss enterprise application platform 7.2 5.3.14-1.Final_redhat_00001.1.el8eap

red hat advisories RHSA-2020:0161RHSA-2020:0160RHSA-2020:0159RHSA-2020:1644

  • xsom AlmaLinux 8 0-19.20110809svn.module_el8.5.0+2577+9e95fe00
  • slf4j AlmaLinux 8 1.7.25-4.module_el8.5.0+2577+9e95fe00
  • stax-ex AlmaLinux 8 1.7.7-8.module_el8.5.0+2577+9e95fe00
  • velocity AlmaLinux 8 1.7-24.module_el8.5.0+2577+9e95fe00
  • xalan-j2 AlmaLinux 8 2.7.1-38.module_el8.5.0+2577+9e95fe00
  • javassist AlmaLinux 8 3.18.1-8.module_el8.5.0+2577+9e95fe00
  • xerces-j2 AlmaLinux 8 2.11.0-34.module_el8.5.0+2577+9e95fe00
  • python3-nss AlmaLinux 8 1.0.1-10.module_el8.5.0+2577+9e95fe00.alma

almalinux advisories ALSA-2020:1644

  • xsom Rocky Linux 8 0-19.20110809svn.module+el8.3.0+53+ea062990
  • slf4j Rocky Linux 8 1.7.25-4.module+el8.5.0+697+f586bb30
  • slf4j Rocky Linux 8 1.7.25-4.module+el8.3.0+74+855e3f5d
  • slf4j Rocky Linux 8 1.7.25-4.module+el8.3.0+133+b8b54b58
  • stax-ex Rocky Linux 8 1.7.7-8.module+el8.3.0+53+ea062990
  • bea-stax Rocky Linux 8 1.2.0-16.module+el8.3.0+53+ea062990
  • resteasy Rocky Linux 8 3.0.26-3.module+el8.3.0+53+ea062990
  • velocity Rocky Linux 8 1.7-24.module+el8.3.0+53+ea062990

rocky linux advisories RLSA-2020:1644

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-16943 updated cvss 7.5

jackson-databind: Serialization gadgets in com.p6spy.engine.spy.P6DataSource

  • Red Hat BPM Suite 6 jackson-databind Red Hat JBoss A-MQ 6 jackson-databind Red Hat JBoss Data Virtualization 6 jackson-databind Red Hat JBoss Fuse 6 jackson-databind Red Hat Mobile Application Platform 4 jackson-databind
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenShift Application Runtimes jackson-databind
    affected: workaround, no fix available
  • Red Hat OpenShift Container Platform 3.9 elasticsearch-cloud-kubernetes, openshift-elasticsearch-plugin Red Hat OpenShift Container Platform 3.10 elasticsearch-cloud-kubernetes, openshift-elasticsearch-plugin Red Hat OpenShift Container Platform 3.11 openshift3/ose-logging-elasticsearch5 Red Hat OpenShift Container Platform 4 openshift4/ose-logging-elasticsearch5
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenStack Platform 10 (Newton) opendaylight
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) opendaylight Red Hat OpenStack Platform 14 (Rocky) opendaylight Red Hat Software Collections rh-maven35-jackson-databind, rh-maven35-jackson-databind-javadoc
    affected: workaround, no fix planned “Will not fix”
  • Red Hat EAP-CD 19 Tech Preview
    fixed: vendor fix RHSA-2020:2333
  • Red Hat AMQ Streams 1
    fixed: vendor fix RHSA-2020:0939
  • Red Hat Data Grid 7.3.6
    fixed: vendor fix RHSA-2020:2321
show 12 more
  • Red Hat Decision Manager 7
    fixed: vendor fix RHSA-2020:0899
  • Red Hat Enterprise Linux AppStream (v. 8) jss 4.6.2-4.module+el8.2.0+6123+b4678599, slf4j 1.7.25-4.module+el8.1.0+3366+6dfb954c, pki-ca 10.8.3-1.module+el8.2.0+5925+bad5981a, stax-ex 1.7.7-8.module+el8.1.0+3366+6dfb954c, velocity 1.7-24.module+el8.1.0+3366+6dfb954c, ldapjdk 4.21.0-2.module+el8.2.0+4573+c3c38c7b, +43 more
    fixed: vendor fix RHSA-2020:1644
  • Red Hat Fuse 7.7.0
    fixed: vendor fix RHSA-2020:3192
  • Red Hat JBoss EAP 7.2
    fixed: vendor fix RHSA-2020:0164
  • Red Hat JBoss EAP 7.2 for RHEL 6 Server eap7-wildfly 7.2.6-5.GA_redhat_00001.1.el6eap, eap7-apache-cxf 3.2.11-1.redhat_00001.1.el6eap, eap7-jberet 1.3.5-1.Final_redhat_00001.1.el6eap, eap7-netty 4.1.42-1.Final_redhat_00001.1.el6eap, eap7-jackson-core 2.9.10-1.redhat_00003.1.el6eap, eap7-undertow 2.0.28-2.SP1_redhat_00001.1.el6eap, +71 more
    fixed: vendor fix RHSA-2020:0159
  • Red Hat JBoss EAP 7.2 for RHEL 7 Server eap7-wildfly 7.2.6-5.GA_redhat_00001.1.el7eap, eap7-apache-cxf 3.2.11-1.redhat_00001.1.el7eap, eap7-jberet 1.3.5-1.Final_redhat_00001.1.el7eap, eap7-netty 4.1.42-1.Final_redhat_00001.1.el7eap, eap7-jackson-core 2.9.10-1.redhat_00003.1.el7eap, eap7-undertow 2.0.28-2.SP1_redhat_00001.1.el7eap, +73 more
    fixed: vendor fix RHSA-2020:0160
  • Red Hat JBoss EAP 7.2 for RHEL 8 eap7-wildfly 7.2.6-5.GA_redhat_00001.1.el8eap, eap7-apache-cxf 3.2.11-1.redhat_00001.1.el8eap, eap7-jberet 1.3.5-1.Final_redhat_00001.1.el8eap, eap7-netty 4.1.42-1.Final_redhat_00001.1.el8eap, eap7-jackson-core 2.9.10-1.redhat_00003.1.el8eap, eap7-undertow 2.0.28-2.SP1_redhat_00001.1.el8eap, +71 more
    fixed: vendor fix RHSA-2020:0161
  • Red Hat Openshift Application Runtimes Vert.x 3.8.3
    fixed: vendor fix RHSA-2019:3901
  • Red Hat Process Automation 7
    fixed: vendor fix RHSA-2020:0895
  • Red Hat Single Sign-On 7.3
    fixed: vendor fix RHSA-2020:0445
  • Red Hat Text-Only RHOAR
    fixed: vendor fix RHSA-2020:2067
  • Red Hat Satellite 6 candlepin, candlepin-selinux
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
32 d ago

Exploit prediction

4.74% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven com.fasterxml.jackson.core:jackson-databind
>=2.9.0, <2.9.10.1
>=2.7.0, <2.8.11.5
<2.6.7.3
2.9.10.1
2.8.11.5
2.6.7.3

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.