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Fencer Vulns
high 7.5

CVE-2019-14893 json

Polymorphic deserialization of malicious object in jackson-databind

published 2020-03-02 6 y ago modified 2026-10-08 31 d ago also GHSA-qmqc-x3r4-6v39 , EUVD-2020-0440

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.

Patch / fix

  • maven com.fasterxml.jackson.core:jackson-databind 2.9.10
  • fasterxml jackson-databind 2.8.11.5, 2.9.10
  • oracle goldengate_stream_analytics 19.1.0.0.1
  • jackson-databind Debian 14, Debian 13, Debian 12 2.10.0-1

debian advisories DEBIAN-CVE-2019-14893

  • 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-2020:0159

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-2019-14893 updated cvss 7.5

jackson-databind: Serialization gadgets in classes of the xalan package

  • 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 Data Grid 7.3.5
    fixed: vendor fix RHSA-2020:0729
  • Red Hat Decision Manager 7
    fixed: vendor fix RHSA-2020:0899
show 9 more
  • 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 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 Enterprise Linux 8 jackson-databind, jackson-databind-javadoc Red Hat Satellite 6 candlepin, candlepin-selinux Red Hat streams for Apache Kafka jackson-databind
    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
31 d ago

Exploit prediction

4.09% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 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 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected packages

ecosystem package affected fixed in
maven com.fasterxml.jackson.core:jackson-databind
>=2.9.0, <2.9.10
2.9.10

Affected products

  • Red Hat jackson-databind

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.