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Fencer Vulns
high 7.5

CVE-2022-4492 json

Undertow client not checking server identity presented by server certificate in https connections

published 2023-02-23 3 y ago modified 2026-06-17 4 mo ago also GHSA-pfcc-3g6r-8rg8 , EUVD-2023-0759

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

The undertow client is not checking the server identity presented by the server certificate in https connections. This is a compulsory step (at least it should be performed by default) in https and in http/2. I would add it to any TLS client protocol.

Patch / fix

  • maven io.undertow:undertow-core 2.2.24.Final, 2.3.5.Final
  • undertow Debian 14 2.3.8-2

debian advisories DEBIAN-CVE-2022-4492

  • eap7-netty jboss enterprise application platform 7.4 4.1.86-1.Final_redhat_00001.1.el9eap
  • eap7-wildfly jboss enterprise application platform 7.4 7.4.10-6.GA_redhat_00002.1.el9eap
  • eap7-resteasy jboss enterprise application platform 7.4 3.15.5-1.Final_redhat_00001.1.el9eap
  • eap7-undertow jboss enterprise application platform 7.4 2.2.23-1.SP2_redhat_00001.1.el9eap
  • eap7-snakeyaml jboss enterprise application platform 7.4 1.33.0-2.SP1_redhat_00001.1.el9eap
  • eap7-infinispan jboss enterprise application platform 7.4 11.0.17-1.Final_redhat_00001.1.el9eap
  • eap7-ironjacamar jboss enterprise application platform 7.4 1.5.11-1.Final_redhat_00001.1.el9eap
  • eap7-jbossws-cxf jboss enterprise application platform 7.4 5.4.8-1.Final_redhat_00001.1.el9eap

red hat advisories RHSA-2025:9583RHSA-2025:9582RHSA-2023:1514RHSA-2023:1513RHSA-2023:1512RHSA-2023:2707

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-2022-4492 updated cvss 7.5

undertow: Server identity in https connection is not checked by the undertow client

  • Red Hat build of Debezium 1 undertow undertow
    affected: no fix planned “Will not fix”
  • Red Hat build of Quarkus undertow undertow
    affected: no fix available
  • Red Hat Data Grid 8 undertow undertow
    affected: no fix planned “Will not fix”
  • Red Hat Decision Manager 7 undertow undertow
    affected: no fix planned “Out of support scope”
  • Red Hat Integration Camel K 1 undertow undertow
    affected: no fix available
  • Red Hat Integration Camel Quarkus 1 undertow undertow
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Data Grid 7 undertow undertow Red Hat JBoss Enterprise Application Platform 6 undertow undertow Red Hat JBoss Fuse 6 undertow undertow Red Hat Process Automation 7 undertow undertow
    affected: no fix planned “Out of support scope”
  • Red Hat Middleware Containers for OpenShift rh-sso-7/sso76-openshift-rhel8 7.6-22
    fixed: vendor fix RHSA-2023:2710
show 16 more
  • Red Hat Migration Toolkit for Runtimes 1 on RHEL 8 mtr/mtr-web-container-rhel8 1.1-8
    fixed: vendor fix RHSA-2023:3813
  • Red Hat MTA 6.2 for RHEL 8 mta/mta-operator-bundle 6.2.0-29
    fixed: vendor fix RHSA-2023:4627
  • Red Hat Fuse 7.12
    fixed: vendor fix RHSA-2023:3954
  • Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-undertow 2.2.23-1.SP2_redhat_00001.1.el7eap, eap7-undertow-jastow 2.0.14-1.Final_redhat_00001.1.el7eap
    fixed: vendor fix RHSA-2023:1512
  • Red Hat JBoss EAP 7.4 for RHEL 8 eap7-undertow 2.2.23-1.SP2_redhat_00001.1.el8eap, eap7-undertow-jastow 2.0.14-1.Final_redhat_00001.1.el8eap
    fixed: vendor fix RHSA-2023:1513
  • Red Hat JBoss EAP 7.4 for RHEL 9 eap7-undertow 2.2.23-1.SP2_redhat_00001.1.el9eap, eap7-undertow-jastow 2.0.14-1.Final_redhat_00001.1.el9eap
    fixed: vendor fix RHSA-2023:1514
  • Red Hat JBoss Enterprise Application Platform undertow-core 2.2.23.SP2-redhat-00001
    fixed: vendor fix RHSA-2023:1516
  • Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server eap7-wildfly 7.1.11-4.GA_redhat_00002.1.ep7.el7, eap7-netty 4.1.63-2.Final_redhat_00003.1.ep7.el7, eap7-undertow 1.4.18-16.SP14_redhat_00001.1.ep7.el7, eap7-glassfish-el 3.0.1-4.b08_redhat_00005.1.ep7.el7, eap7-hibernate 5.1.17-3.Final_redhat_00004.1.ep7.el7, eap7-netty-all 4.1.63-2.Final_redhat_00003.1.ep7.el7, +19 more
    fixed: vendor fix RHSA-2025:9582
  • Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server eap7-wildfly 7.3.14-3.GA_redhat_00002.1.el7eap, eap7-netty 4.1.63-5.Final_redhat_00003.1.el7eap, eap7-jackson-core 2.10.4-3.redhat_00006.1.el7eap, eap7-undertow 2.0.41-4.SP5_redhat_00001.1.el7eap, eap7-netty-all 4.1.63-5.Final_redhat_00003.1.el7eap, eap7-jackson-databind 2.10.4-5.redhat_00006.1.el7eap, +37 more
    fixed: vendor fix RHSA-2025:9583
  • Red Hat Single Sign-On 7
    fixed: vendor fix RHSA-2023:2713
  • Red Hat Single Sign-On 7.6 for RHEL 7 Server rh-sso7-keycloak 18.0.7-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server 18.0.7-1.redhat_00001.1.el7sso
    fixed: vendor fix RHSA-2023:2705
  • Red Hat Single Sign-On 7.6 for RHEL 8 rh-sso7-keycloak 18.0.7-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server 18.0.7-1.redhat_00001.1.el8sso
    fixed: vendor fix RHSA-2023:2706
  • Red Hat Single Sign-On 7.6 for RHEL 9 rh-sso7-keycloak 18.0.7-1.redhat_00001.1.el9sso, rh-sso7-keycloak-server 18.0.7-1.redhat_00001.1.el9sso
    fixed: vendor fix RHSA-2023:2707
  • Red Hat RHINT Camel-Springboot 3.20.1
    fixed: vendor fix RHSA-2023:2100
  • Red Hat RHPAM 7.13.4 async
    fixed: vendor fix RHSA-2023:4983
  • Red Hat Migration Toolkit for Runtimes 1 on RHEL 8 mtr/mtr-rhel8-operator 1.1-7, mtr/mtr-operator-bundle 1.1-9, mtr/mtr-web-executor-container-rhel8 1.1-7 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-pathfinder-rhel9 6.2.0-5, mta/mta-windup-addon-rhel9 6.2.0-11 Red Hat build of Apicurio Registry 2 undertow undertow Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-wildfly 7.4.10-6.GA_redhat_00002.1.el7eap, eap7-netty 4.1.86-1.Final_redhat_00001.1.el7eap, eap7-apache-mime4j 0.8.9-1.redhat_00001.1.el7eap, eap7-artemis-native 1.0.2-4.redhat_00004.1.el7eap, eap7-snakeyaml 1.33.0-2.SP1_redhat_00001.1.el7eap, eap7-resteasy 3.15.5-1.Final_redhat_00001.1.el7eap, +98 more Red Hat JBoss EAP 7.4 for RHEL 8 eap7-wildfly 7.4.10-6.GA_redhat_00002.1.el8eap, eap7-netty 4.1.86-1.Final_redhat_00001.1.el8eap, eap7-apache-mime4j 0.8.9-1.redhat_00001.1.el8eap, eap7-artemis-native 1.0.2-4.redhat_00004.1.el8eap, eap7-snakeyaml 1.33.0-2.SP1_redhat_00001.1.el8eap, eap7-resteasy 3.15.5-1.Final_redhat_00001.1.el8eap, +99 more Red Hat JBoss EAP 7.4 for RHEL 9 eap7-wildfly 7.4.10-6.GA_redhat_00002.1.el9eap, eap7-netty 4.1.86-1.Final_redhat_00001.1.el9eap, eap7-apache-mime4j 0.8.9-1.redhat_00001.1.el9eap, eap7-artemis-native 1.0.2-4.redhat_00004.1.el9eap, eap7-snakeyaml 1.33.0-2.SP1_redhat_00001.1.el9eap, eap7-resteasy 3.15.5-1.Final_redhat_00001.1.el9eap, +98 more
    +2 more products
    Red Hat JBoss Enterprise Application Platform pom.xml, c3 0.6.0, c3 0.7.1, d3 5.9.2, fs 2.1.2, ip 2.0.0, +1541 more Red Hat JBoss Fuse Service Works 6 undertow undertow
    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
partial
Assessed
19 mo ago

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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 io.undertow:undertow-core
>=2.3.0, <2.3.5.Final
<2.2.24.Final
2.3.5.Final
2.2.24.Final

Affected products

  • n/a undertow

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

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.