Read the docs
TI-2018-08416 Aliases CVE-2018-11759GHSA-5q2c-33mg-8m75

Path traversal in Apache Tomcat Connectors

Priority HIGH 76CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 3 fixed, 3 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-22 and the CVSS impact.

Summary

The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44 did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed via httpd, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing the application via the reverse proxy. It was also possible in some configurations for a specially constructed request to bypass the access controls configured in httpd. While there is some overlap between this issue and CVE-2018-1323, they are not identical.

Why it matters now

EPSS 0.90647 99th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 3 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Tomcat ConnectorsApache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44—No fix listedCNA
  • Apache Tomcat Connectors VendorApache Affected Apache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat_jk_connector:*:*:*:*:*:*:*:*1.2.0 – 1.2.44VulnerableApache
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:a:redhat:jboss_core_services:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
  • cpe:2.3:a:apache:tomcat_jk_connector:*:*:*:*:*:*:*:* Versions 1.2.0 – 1.2.44 Vulnerable ·Apache
  • 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:a:redhat:jboss_core_services:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2019:0367 Released 2019-02-18 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 security update
    • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-1-6.jbcs.el6, jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el6, jbcs-httpd24-apr-1.6.3-31.jbcs.el6 +31
    • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-1-6.jbcs.el7, jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el7, jbcs-httpd24-apr-1.6.3-31.jbcs.el7 +31
  • RHSA-2019:0366 Released 2019-02-18 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 SP1 security update
    • Red Hat JBoss Core Services

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat JBoss Enterprise Application Platform 5AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix yet
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Will not fix
Red Hat JBoss Core ServicesFixed RHSA-2019:0366
Red Hat JBoss Core Services on RHEL 6 ServerFixed RHSA-2019:0367
Red Hat JBoss Core Services on RHEL 7 ServerFixed RHSA-2019:0367
Not affected: 1 product
  • Red Hat JBoss Web Server 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-11759
  2. 2026-10-03 Alias added: GHSA-5q2c-33mg-8m75

References

Advisory 4

Other 8

  • TI-2018-01226 Information disclosure in Apache Tomcat Connectors CVSS 3.0HIGH 7.5
  • TI-2016-05849 Buffer overflow in Apache Tomcat Connectors (mod_jk) before 1.2.42. CVSS 3.0CRITICAL 9.8

Sources

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