CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red…
Priority LOW 32CWE-113Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.
Why it matters now
EPSS 0.02548 85th percentileScored 2026-11-07
Fix Fixed org.wildfly:wildfly-undertow (Maven): 11.0.0.FinalRed Hat: 8 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | org.wildfly:wildfly-undertow (Maven) | 10.0.0.Final to before 11.0.0.Final | 11.0.0.Final | Patch available | GHSA-qcqr-hcjq-whfq |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- org.wildfly:wildfly-undertow (Maven) Vendor— Affected 10.0.0.Final to before 11.0.0.Final Fixed in 11.0.0.Final Patch available GHSA-qcqr-hcjq-whfq
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:jboss_enterprise_application_platform:*:*:*:*:*:*:*:* | up to 7.0.1 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:jboss_wildfly_application_server:10.0.0:*:*:*:*:*:*:* | 10.0.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
- cpe:2.3:a:redhat:jboss_enterprise_application_platform:*:*:*:*:*:*:*:* Versions up to 7.0.1 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:jboss_wildfly_application_server:10.0.0:*:*:*:*:*:*:* Versions 10.0.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
Remediation
- Fix · GHSA-qcqr-hcjq-whfq org.wildfly:wildfly-undertow (Maven) Fixed in 11.0.0.Final Advisory →
Red Hat 8 advisories
- RHSA-2017:3458 Released 2017-12-13 · Red Hat rating Importanteap7-jboss-ec2-eap security update
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 Server eap7-jboss-ec2-eap-7.1.0-5.GA_redhat_5.ep7.el6, eap7-jboss-ec2-eap-samples-7.1.0-5.GA_redhat_5.ep7.el6
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 Server eap7-jboss-ec2-eap-7.1.0-5.GA_redhat_5.ep7.el7, eap7-jboss-ec2-eap-samples-7.1.0-5.GA_redhat_5.ep7.el7
- RHSA-2017:3455 Released 2017-12-13 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.0 security update
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 Server eap7-activemq-artemis-1.5.5.008-1.redhat_1.1.ep7.el7, eap7-activemq-artemis-cli-1.5.5.008-1.redhat_1.1.ep7.el7, eap7-activemq-artemis-commons-1.5.5.008-1.redhat_1.1.ep7.el7 +47
- RHSA-2017:3454 Released 2017-12-13 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.0 security update
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 Server eap7-activemq-artemis-1.5.5.008-1.redhat_1.1.ep7.el6, eap7-activemq-artemis-cli-1.5.5.008-1.redhat_1.1.ep7.el6, eap7-activemq-artemis-commons-1.5.5.008-1.redhat_1.1.ep7.el6 +47
Show 5 more Red Hat advisories
- RHSA-2017:3456 Released 2017-12-13 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.0 security update
- Red Hat JBoss EAP 7.1
- RHSA-2016:1839 Released 2016-09-08 · Red Hat rating ImportantJBoss Enterprise Application Platform 7.0.2 for RHEL 7
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 Server eap7-activemq-artemis-1.1.0-15.SP18_redhat_1.1.ep7.el7, eap7-activemq-artemis-cli-1.1.0-15.SP18_redhat_1.1.ep7.el7, eap7-activemq-artemis-commons-1.1.0-15.SP18_redhat_1.1.ep7.el7 +47
- RHSA-2016:1838 Released 2016-09-08 · Red Hat rating ImportantJBoss Enterprise Application Platform 7.0.2 on RHEL 6
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 Server eap7-activemq-artemis-1.1.0-15.SP18_redhat_1.1.ep7.el6, eap7-activemq-artemis-cli-1.1.0-15.SP18_redhat_1.1.ep7.el6, eap7-activemq-artemis-commons-1.1.0-15.SP18_redhat_1.1.ep7.el6 +47
- RHSA-2016:1840 Released 2016-09-08 · Red Hat rating Importanteap7-jboss-ec2-eap security, bug fix, and enhancement update
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 Server eap7-jboss-ec2-eap-7.0.2-2.GA_redhat_1.ep7.el6, eap7-jboss-ec2-eap-samples-7.0.2-2.GA_redhat_1.ep7.el6
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 Server eap7-jboss-ec2-eap-7.0.2-2.GA_redhat_1.ep7.el7, eap7-jboss-ec2-eap-samples-7.0.2-2.GA_redhat_1.ep7.el7
- RHSA-2016:1841 Released 2016-09-08 · Red Hat rating ImportantJBoss Enterprise Application Platform 7.0.2
- Red Hat JBoss EAP 7.0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss EAP 7.0 | Fixed | RHSA-2016:1841 |
| Red Hat JBoss EAP 7.1 | Fixed | RHSA-2017:3456 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 Server | Fixed | RHSA-2016:1838, RHSA-2016:1840 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 Server | Fixed | RHSA-2016:1839, RHSA-2016:1840 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 Server | Fixed | RHSA-2017:3454, RHSA-2017:3458 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 Server | Fixed | RHSA-2017:3455, RHSA-2017:3458 |
Not affected: 7 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat JBoss Enterprise Application Platform 6
- Red Hat JBoss Enterprise Web Server 2
- Red Hat JBoss Enterprise Web Server 3
- Red Hat JBoss Operations Network 3
- Red Hat JBoss Portal 6
Timeline
- 2026-10-02 Threatist record created from CVE-2016-4993
- 2026-10-03 Alias added: GHSA-qcqr-hcjq-whfq
- 2026-11-05 Fix available: Red Hat JBoss EAP 7.0, Red Hat JBoss EAP 7.1 · Red Hat
References
Advisory 10
More Red Hat Jboss Enterprise Application Platform vulnerabilities
- TI-2017-08941 Deserialization of untrusted data in Red Hat jbossas KEVCVSS 3.1CRITICAL 9.8
- TI-2010-01790 JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for… KEVCVSS 3.1HIGH 8.8
- TI-2017-09342 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2010-01383 The Web Console (aka web-console) in JBossAs in Red Hat JBoss Enterprise Application… KEVCVSS 3.1HIGH 7.5
- TI-2017-09354 XML external entity injection in Apache Solr before 7.1 with Apache Lucene before 7.1 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2016-4993 · CVE Program
- CVE-2016-4993 · NVD
- FIRST EPSS
- GHSA-qcqr-hcjq-whfq · GitHub Advisory Database · CC BY 4.0
- CVE-2016-4993 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences