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TI-2026-59034 Aliases CVE-2026-86247GHSA-jhrw-x5gg-jjqw

Apache Tomcat Native: Client certificate requirements can be down-graded

Priority LOW 34CWE-366Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

Race condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00202 10th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
ApacheApache Tomcat Native2.0.0 – 2.0.15; 1.3.0 – 1.3.8—No fix listedCNA
  • Apache Tomcat Native VendorApache Affected 2.0.0 – 2.0.15; 1.3.0 – 1.3.8 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:*1.3.0 to before 1.3.9; 2.0.0 to before 2.0.16VulnerableApache
  • cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:* Versions 1.3.0 to before 1.3.9; 2.0.0 to before 2.0.16 Vulnerable ·Apache

Remediation

Red Hat 2 advisories

  • RHSA-2026:93618 Released 2026-11-03 · Red Hat rating Important
    Red Hat JBoss Web Server 7.0.3 release and security update
    • Red Hat JBoss Web Server 7.0 on RHEL 10 jws7-mod_cluster-2.1.1-1.Final_redhat_00001.1.el10jws, jws7-mod_cluster-tomcat-2.1.1-1.Final_redhat_00001.1.el10jws, jws7-tomcat-11.0.21-10.redhat_00010.1.el10jws +10
    • Red Hat JBoss Web Server 7.0 on RHEL 8 jws7-mod_cluster-2.1.1-1.Final_redhat_00001.1.el8jws, jws7-mod_cluster-tomcat-2.1.1-1.Final_redhat_00001.1.el8jws, jws7-tomcat-11.0.21-10.redhat_00010.1.el8jws +10
    • Red Hat JBoss Web Server 7.0 on RHEL 9 jws7-mod_cluster-2.1.1-1.Final_redhat_00001.1.el9jws, jws7-mod_cluster-tomcat-2.1.1-1.Final_redhat_00001.1.el9jws, jws7-tomcat-11.0.21-10.redhat_00010.1.el9jws +10
  • RHSA-2026:93622 Released 2026-11-03 · Red Hat rating Important
    Red Hat JBoss Web Server 7.0.3 release and security update
    • Red Hat JBoss Web Server 7.0.3

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat JBoss Web Server 5AffectedNo fix planned: Will not fix
Red Hat JBoss Web Server 6AffectedNo fix yet
Red Hat JBoss Web Server 7.0 on RHEL 10Fixed RHSA-2026:93618
Red Hat JBoss Web Server 7.0 on RHEL 8Fixed RHSA-2026:93618
Red Hat JBoss Web Server 7.0 on RHEL 9Fixed RHSA-2026:93618
Red Hat JBoss Web Server 7.0.3Fixed RHSA-2026:93622

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86247
  2. 2026-10-03 Alias added: GHSA-jhrw-x5gg-jjqw
  3. 2026-11-03 Fix available: RHSA-2026:93622 · Red Hat
  4. 2026-11-03 Fix available: RHSA-2026:93618 · Red Hat
  5. 2026-11-03 Fix available: Red Hat JBoss Web Server 7.0 on RHEL 10, Red Hat JBoss Web Server 7.0 on RHEL 8, Red Hat JBoss Web Server 7.0 on RHEL 9 +1 · Red Hat

References

Advisory 2

  • TI-2026-59033 Apache Tomcat Native: Insecure OpenSSL options enabled CVSS 3.1CRITICAL 9.1
  • TI-2026-23283 Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabled CVSS 3.1CRITICAL 9.1
  • TI-2026-59030 Apache Tomcat Native: DoS via TLS handshake CVSS 3.1HIGH 7.5
  • TI-2018-05797 Improper certificate validation in Apache Tomcat Native CVSS 3.0HIGH 7.4
  • TI-2018-05796 Improper certificate validation in Apache Tomcat Native CVSS 3.0HIGH 7.4
  • TI-2026-19939 Apache Tomcat Native, Apache Tomcat: OCSP revocation bypass CVSS 3.1HIGH 7.5
See all 7 →

Sources

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