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Fencer Vulns
high 7.5

CVE-2021-46877 json

jackson-databind possible Denial of Service if using JDK serialization to serialize JsonNode

published 2023-03-18 3 y ago modified 2026-09-10 1 mo ago also GHSA-3x8x-79m2-3w2w , EUVD-2023-0856

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.

Patch / fix

  • maven com.fasterxml.jackson.core:jackson-databind 2.12.6, 2.13.1
  • fasterxml jackson-databind 2.12.6
  • jackson-databind Debian 14, Debian 13, Debian 12 2.13.2.2-1

debian advisories DEBIAN-CVE-2021-46877

  • jenkins ocp tools 4.13 2.387.3.1684911776-3.el8
  • jenkins-2-plugins ocp tools 4.13 4.13.1684911916-1.el8
  • cjson satellite capsule 6.13, satellite 6.13 1.7.14-5.el8sat
  • foreman satellite utils 6.13, satellite capsule 6.13, satellite 6.13 3.5.1.14-1.el8sat
  • katello satellite capsule 6.13, satellite 6.13 4.7.0-1.el8sat
  • libsolv satellite capsule 6.13, satellite 6.13 0.7.22-4.el8pc
  • libcomps satellite capsule 6.13, satellite 6.13 0.1.18-4.el8pc
  • qpid-cpp satellite capsule 6.13, satellite 6.13 1.39.0-7.el8amq

red hat advisories RHSA-2023:3299RHSA-2023:2097RHSA-2023:3610RHSA-2023:4918RHSA-2023:4507RHSA-2023:4506

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-2021-46877 updated cvss 7.5

jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode

  • Red Hat Cryostat 2 jackson-databind
    affected: no fix planned “Will not fix”
  • Red Hat Decision Manager 7 jackson-databind
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 jackson-databind, jackson-databind-javadoc
    affected: no fix planned “Will not fix”
  • Red Hat Fuse 7 jackson-databind
    affected: no fix planned “Out of support scope”
  • Red Hat Integration Camel K 1 jackson-databind
    affected: no fix available
  • Red Hat Integration Camel Quarkus 2 jackson-databind
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Data Grid 7 jackson-databind Red Hat JBoss Data Virtualization 6 jackson-databind Red Hat JBoss Enterprise Application Platform 6 jackson-databind, jboss-on jboss-on, keycloak-adapter-eap6 keycloak-adapter-eap6, keycloak-adapter-sso7_2-eap6 keycloak-adapter-sso7_2-eap6, keycloak-adapter-sso7_3-eap6 keycloak-adapter-sso7_3-eap6, keycloak-adapter-sso7_4-eap6 keycloak-adapter-sso7_4-eap6, +1 more Red Hat JBoss Fuse 6 jackson-databind Red Hat JBoss Fuse Service Works 6 jackson-databind
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Application Runtimes jackson-databind
    affected: no fix planned “Will not fix”
show 23 more
  • Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 jenkins, jenkins-2-plugins Red Hat OpenShift Dev Spaces devspaces/pluginregistry-rhel8
    affected: no fix available
  • Red Hat OpenStack Platform 13 (Queens) opendaylight Red Hat Process Automation 7 jackson-databind
    affected: no fix planned “Out of support scope”
  • Red Hat streams for Apache Kafka jackson-databind
    affected: no fix planned “Will not fix”
  • Red Hat Middleware Containers for OpenShift rh-sso-7/sso76-openshift-rhel8 7.6-27
    fixed: vendor fix RHSA-2023:4921
  • Red Hat Migration Toolkit for Runtimes 1 on RHEL 8 mtr/mtr-web-container-rhel8 1.1-7
    fixed: vendor fix RHSA-2023:3373
  • Red Hat MTA 6.2 for RHEL 8 mta/mta-windup-addon-rhel9 6.2.0-11
    fixed: vendor fix RHSA-2023:4627
  • Red Hat OpenShift Developer Tools and Services for OCP 4.12 jenkins 2.401.1.1686649641-3.el8
    fixed: vendor fix RHSA-2023:3610
  • Red Hat OpenShift Developer Tools and Services for OCP 4.13 jenkins 2.387.3.1684911776-3.el8
    fixed: vendor fix RHSA-2023:3299
  • Red Hat AMQ Streams 2.4.0
    fixed: vendor fix RHSA-2023:3223
  • Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-wildfly 7.4.12-3.GA_redhat_00003.1.el7eap, eap7-wildfly-modules 7.4.12-3.GA_redhat_00003.1.el7eap, eap7-wildfly-javadocs 7.4.12-3.GA_redhat_00003.1.el7eap, eap7-wildfly-java-jdk8 7.4.12-3.GA_redhat_00003.1.el7eap, eap7-wildfly-java-jdk11 7.4.12-3.GA_redhat_00003.1.el7eap
    fixed: vendor fix RHSA-2023:4505
  • Red Hat JBoss EAP 7.4 for RHEL 8 eap7-wildfly 7.4.12-3.GA_redhat_00003.1.el8eap, eap7-wildfly-modules 7.4.12-3.GA_redhat_00003.1.el8eap, eap7-wildfly-javadocs 7.4.12-3.GA_redhat_00003.1.el8eap, eap7-wildfly-java-jdk8 7.4.12-3.GA_redhat_00003.1.el8eap, eap7-wildfly-java-jdk11 7.4.12-3.GA_redhat_00003.1.el8eap, eap7-wildfly-java-jdk17 7.4.12-3.GA_redhat_00003.1.el8eap
    fixed: vendor fix RHSA-2023:4506
  • Red Hat JBoss EAP 7.4 for RHEL 9 eap7-wildfly 7.4.12-3.GA_redhat_00003.1.el9eap, eap7-wildfly-modules 7.4.12-3.GA_redhat_00003.1.el9eap, eap7-wildfly-javadocs 7.4.12-3.GA_redhat_00003.1.el9eap, eap7-wildfly-java-jdk8 7.4.12-3.GA_redhat_00003.1.el9eap, eap7-wildfly-java-jdk11 7.4.12-3.GA_redhat_00003.1.el9eap, eap7-wildfly-java-jdk17 7.4.12-3.GA_redhat_00003.1.el9eap
    fixed: vendor fix RHSA-2023:4507
  • Red Hat JBoss Enterprise Application Platform jackson-databind 2.12.7.redhat-00003
    fixed: vendor fix RHSA-2023:4509
  • Red Hat Satellite 6.13 for RHEL 8 cjson 1.7.14-5.el8sat, katello 4.7.0-1.el8sat, libsolv 0.7.22-4.el8pc, libcomps 0.1.18-4.el8pc, python-idna 3.3-2.el8pc, python-pbr 5.8.0-4.el8pc, +671 more
    fixed: vendor fix RHSA-2023:2097
  • Red Hat Single Sign-On 7.6 for RHEL 7 Server rh-sso7-keycloak 18.0.9-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server 18.0.9-1.redhat_00001.1.el7sso
    fixed: vendor fix RHSA-2023:4918
  • Red Hat Single Sign-On 7.6 for RHEL 8 rh-sso7-keycloak 18.0.9-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server 18.0.9-1.redhat_00001.1.el8sso
    fixed: vendor fix RHSA-2023:4919
  • Red Hat Single Sign-On 7.6 for RHEL 9 rh-sso7-keycloak 18.0.9-1.redhat_00001.1.el9sso, rh-sso7-keycloak-server 18.0.9-1.redhat_00001.1.el9sso
    fixed: vendor fix RHSA-2023:4920
  • Red Hat Single Sign-On 7.6.5
    fixed: vendor fix RHSA-2023:4924
  • Red Hat support for Spring Boot 2.7.13
    fixed: vendor fix RHSA-2023:4612
  • Red Hat RHINT Camel-Springboot 3.18.3.2
    fixed: vendor fix RHSA-2023:5147
  • Red Hat RHINT Service Registry 2.4.3 GA
    fixed: vendor fix RHSA-2023:3815
  • Red Hat A-MQ Clients 2 jackson-databind Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/elasticsearch6-rhel8 Red Hat Migration Toolkit for Runtimes 1 on RHEL 8 mtr/mtr-rhel8-operator 1.1-6, mtr/mtr-operator-bundle 1.1-8, mtr/mtr-web-executor-container-rhel8 1.1-6 Red Hat MTA 6.2 for RHEL 8 mta/mta-ui-rhel9 6.2.0-17, mta/mta-hub-rhel9 6.2.0-16, mta/mta-rhel8-operator 6.2.0-12, mta/mta-operator-bundle 6.2.0-29, mta/mta-pathfinder-rhel9 6.2.0-5
    not affected: vulnerable code not present

17 more not affected in the full advisory

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
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/FasterXML/jackson-databind/issues/3328 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven com.fasterxml.jackson.core:jackson-databind
>=2.10.0, <2.12.6
>=2.13.0, <2.13.1
2.12.6
2.13.1

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

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.