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Fencer Vulns
high 7.5

CVE-2019-14888 json

Undertow vulnerable to Uncontrolled Resource Consumption

published 2020-01-23 6 y ago modified 2026-06-17 4 mo ago also GHSA-vjxc-frw4-jmh5 , EUVD-2022-5375

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

A vulnerability was found in the Undertow HTTP server in versions before 2.0.28.SP1 when listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service (DOS) to make the service unavailable on SSL.

Patch / fix

  • maven io.undertow:undertow-core 2.0.29.Final
  • undertow Debian 14 2.0.30-1

debian advisories DEBIAN-CVE-2019-14888

  • 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-2024:5856RHSA-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-2019-14888 updated cvss 7.5

undertow: possible Denial Of Service (DOS) in Undertow HTTP server listening on HTTPS

  • Red Hat JBoss Fuse 6 undertow undertow
    affected: workaround, no fix available “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.”
  • Red Hat OpenShift Application Runtimes undertow undertow
    affected: workaround, no fix planned “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.”
  • Red Hat Single Sign-On 7 undertow undertow Red Hat support for Spring Boot undertow undertow
    affected: workaround, no fix available “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.”
  • Red Hat EAP-CD 19 Tech Preview
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:2333
  • Red Hat Data Grid 7.3.5
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:0729
  • Red Hat Fuse 7.7.0
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:3192
  • Red Hat JBoss EAP 7.2
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” 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 “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:0159
show 7 more
  • 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 “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” 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 “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:0161
  • Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server eap7-undertow 1.4.18-12.SP12_redhat_00001.1.ep7.el7
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2024:5856
  • Red Hat Runtimes Spring Boot 2.1.13
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:2367
  • Red Hat Single Sign-On 7.3
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:0445
  • Red Hat Text-Only RHOAR
    fixed: vendor fix “Enable HTTP2 (enable-http2="true") in the undertow's HTTPS settings.” RHSA-2020:2067
  • Red Hat Decision Manager 7 undertow undertow Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server eap7-wildfly 7.1.7-2.GA_redhat_00002.1.ep7.el7, eap7-netty 4.1.45-1.Final_redhat_00001.1.ep7.el7, eap7-infinispan 8.2.11-1.SP2_redhat_00001.1.ep7.el7, eap7-netty-all 4.1.45-1.Final_redhat_00001.1.ep7.el7, eap7-wildfly-modules 7.1.7-2.GA_redhat_00002.1.ep7.el7, eap7-jackson-databind 2.8.11.5-1.redhat_00001.1.ep7.el7, +8 more Red Hat Process Automation 7 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

Exploit prediction

2.18% chance of exploitation in the next 30 days, higher than 82% 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: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
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
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 io.undertow:undertow-core
<2.0.29.Final
2.0.29.Final

Affected products

  • Red Hat undertow

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

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.