Read the docs
TI-2019-14676 Aliases CVE-2019-20444GHSA-cqqj-4p63-rrmm

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon…

Priority MEDIUM 59CWE-444Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 17 fixed, 9 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.08914 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial io.netty:netty-codec-http (Maven): 4.1.44Red Hat: 19 advisoriesRed Hat: 17 fixed, 9 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—io.netty:netty-codec-http (Maven)before 4.1.444.1.44Patch availableGHSA-cqqj-4p63-rrmm
—org.jboss.netty:netty (Maven)all versions—No fix listedGHSA-cqqj-4p63-rrmm
—io.netty:netty (Maven)all versions—No fix listedGHSA-cqqj-4p63-rrmm
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • io.netty:netty-codec-http (Maven) Vendor— Affected before 4.1.44 Fixed in 4.1.44 Patch available GHSA-cqqj-4p63-rrmm
  • org.jboss.netty:netty (Maven) Vendor— Affected all versions Fixed in — No fix listed GHSA-cqqj-4p63-rrmm
  • io.netty:netty (Maven) Vendor— Affected all versions Fixed in — No fix listed GHSA-cqqj-4p63-rrmm

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*before 4.1.44Vulnerablenetty
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:a:redhat:jboss_amq_clients:2:*:*:*:*:*:*:*2VulnerableRed Hat
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0Running onRed Hat
  • cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* Versions before 4.1.44 Vulnerable ·netty
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:a:redhat:jboss_amq_clients:2:*:*:*:*:*:*:* Versions 2 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Running on ·Red Hat
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0Running onRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0Running onRed Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat

Remediation

  • Fix · GHSA-cqqj-4p63-rrmm io.netty:netty-codec-http (Maven) Fixed in 4.1.44 Advisory →

Red Hat 19 advisories

  • RHSA-2024:5856 Released 2024-08-26 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.1.7 on RHEL 7 security update
    • Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server eap7-apache-commons-beanutils-1.9.4-1.redhat_00002.1.ep7.el7, eap7-infinispan-8.2.11-1.SP2_redhat_00001.1.ep7.el7, eap7-infinispan-cachestore-jdbc-8.2.11-1.SP2_redhat_00001.1.ep7.el7 +12
  • RHSA-2020:3197 Released 2020-07-29 · Red Hat rating Important
    Red Hat Process Automation Manager 7.8.0 Security Update
    • Red Hat Process Automation 7
  • RHSA-2020:3196 Released 2020-07-29 · Red Hat rating Important
    Red Hat Decision Manager 7.8.0 Security Update
    • Red Hat Decision Manager 7
Show 16 more Red Hat advisories
  • RHSA-2020:3192 Released 2020-07-28 · Red Hat rating Important
    Red Hat Fuse 7.7.0 release and security update
    • Red Hat Fuse 7.7.0
  • RHSA-2020:2333 Released 2020-05-28 · Red Hat rating Important
    EAP Continuous Delivery Technical Preview Release 19 security update
    • EAP-CD 19 Tech Preview
  • RHSA-2020:2321 Released 2020-05-26 · Red Hat rating Important
    Red Hat Data Grid 7.3.6 security update
    • Red Hat Data Grid 7.3.6
  • RHSA-2020:1445 Released 2020-04-14 · Red Hat rating Important
    Red Hat AMQ Broker 7.4.3 release and security update
    • Red Hat AMQ 7.4.3
  • RHSA-2020:0951 Released 2020-03-23 · Red Hat rating Important
    Red Hat Single Sign-On 7.3.7 security update
    • Red Hat Single Sign-On 7.3
  • RHSA-2020:0939 Released 2020-03-23 · Red Hat rating Important
    Red Hat AMQ Streams 1.4.0 release and security update
    • Red Hat AMQ Streams 1
  • RHSA-2020:0922 Released 2020-03-23 · Red Hat rating Important
    Red Hat AMQ Broker 7.6 release and security update
    • Red Hat AMQ
  • RHSA-2020:0805 Released 2020-03-12 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.2.7 on RHEL 7 security update
    • Red Hat JBoss EAP 7.2 for RHEL 7 Server eap7-activemq-artemis-2.9.0-2.redhat_00009.1.el7eap, eap7-activemq-artemis-cli-2.9.0-2.redhat_00009.1.el7eap, eap7-activemq-artemis-commons-2.9.0-2.redhat_00009.1.el7eap +47
  • RHSA-2020:0804 Released 2020-03-12 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.2.7 on RHEL 6 security update
    • Red Hat JBoss EAP 7.2 for RHEL 6 Server eap7-activemq-artemis-2.9.0-2.redhat_00009.1.el6eap, eap7-activemq-artemis-cli-2.9.0-2.redhat_00009.1.el6eap, eap7-activemq-artemis-commons-2.9.0-2.redhat_00009.1.el6eap +47
  • RHSA-2020:0806 Released 2020-03-12 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.2.7 on RHEL 8 security update
    • Red Hat JBoss EAP 7.2 for RHEL 8 eap7-activemq-artemis-2.9.0-2.redhat_00009.1.el8eap, eap7-activemq-artemis-cli-2.9.0-2.redhat_00009.1.el8eap, eap7-activemq-artemis-commons-2.9.0-2.redhat_00009.1.el8eap +47
  • RHSA-2020:0811 Released 2020-03-12 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.2.7 security update
    • Red Hat JBoss EAP 7.2
  • RHSA-2020:0567 Released 2020-03-03 · Red Hat rating Important
    Red Hat build of Eclipse Vert.x 3.8.5 security update
    • Text-Only RHOAR
  • RHSA-2020:0605 Released 2020-02-25 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.2 security update
    • Red Hat JBoss EAP 7.2 for RHEL 6 Server eap7-netty-4.1.45-1.Final_redhat_00001.1.el6eap, eap7-netty-all-4.1.45-1.Final_redhat_00001.1.el6eap
    • Red Hat JBoss EAP 7.2 for RHEL 7 Server eap7-netty-4.1.45-1.Final_redhat_00001.1.el7eap, eap7-netty-all-4.1.45-1.Final_redhat_00001.1.el7eap
    • Red Hat JBoss EAP 7.2 for RHEL 8 eap7-netty-4.1.45-1.Final_redhat_00001.1.el8eap, eap7-netty-all-4.1.45-1.Final_redhat_00001.1.el8eap
  • RHSA-2020:0606 Released 2020-02-25 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.2 security update
    • Red Hat JBoss EAP 7.2
  • RHSA-2020:0601 Released 2020-02-25 · Red Hat rating Important
    AMQ Clients 2.6.0 Release
    • Red Hat AMQ Clients 2 nodejs-rhea-1.0.16-1.el8, python-qpid-proton-0.30.0-2.el7, python-qpid-proton-0.30.0-4.el6_10 +32
  • RHSA-2020:0497 Released 2020-02-13 · Red Hat rating Important
    AMQ Online security update
    • Red Hat AMQ Online 1.3.3 GA

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix yet
Red Hat JBoss A-MQ 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Application Platform 5AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Fuse 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Operations Network 3AffectedNo fix planned: Out of support scope
Red Hat OpenShift Container Platform 3.11AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 4AffectedNo fix planned: Will not fix
Red Hat Satellite 6AffectedNo fix planned: Will not fix
EAP-CD 19 Tech PreviewFixed RHSA-2020:2333
Red Hat AMQFixed RHSA-2020:0922
Red Hat AMQ 7.4.3Fixed RHSA-2020:1445
Red Hat AMQ Clients 2Fixed RHSA-2020:0601
Red Hat AMQ Online 1.3.3 GAFixed RHSA-2020:0497
Red Hat AMQ Streams 1Fixed RHSA-2020:0939
Red Hat Data Grid 7.3.6Fixed RHSA-2020:2321
Red Hat Decision Manager 7Fixed RHSA-2020:3196
Red Hat Fuse 7.7.0Fixed RHSA-2020:3192
Red Hat JBoss EAP 7.2Fixed RHSA-2020:0606
Red Hat JBoss EAP 7.2 for RHEL 6 ServerFixed RHSA-2020:0605, RHSA-2020:0804
Red Hat JBoss EAP 7.2 for RHEL 7 ServerFixed RHSA-2020:0605, RHSA-2020:0805
Red Hat JBoss EAP 7.2 for RHEL 8Fixed RHSA-2020:0605, RHSA-2020:0806
Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 ServerFixed RHSA-2024:5856
Red Hat Process Automation 7Fixed RHSA-2020:3197
Red Hat Single Sign-On 7.3Fixed RHSA-2020:0951
Text-Only RHOARFixed RHSA-2020:0567
Not affected: 1 product
  • Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-20444
  2. 2026-10-03 Alias added: GHSA-cqqj-4p63-rrmm
  3. 2026-10-08 CISA SSVC decision points changed

References

Exploit 1

Patch 1

Advisory 17

Other 103

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences