Read the docs
TI-2026-46430 Aliases CVE-2026-64958GHSA-3p6r-x275-5x98

Apache CXF: Denial of service via message header attachments

Priority MEDIUM 40CWE-400Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00664 51st percentileScored 2026-11-07
Fix Partial Apache CXF (Apache Software Foundation): 4.2.3, 4.1.8, 3.6.12Red Hat: 4 advisoriesRed Hat: 4 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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 CXF4.2.0 to before 4.2.3; 4.0.0 to before 4.1.8; before 3.6.124.2.3, 4.1.8, 3.6.12Patch availableCNA
  • Apache CXF VendorApache Affected 4.2.0 to before 4.2.3; 4.0.0 to before 4.1.8; before 3.6.12 Fixed in 4.2.3, 4.1.8, 3.6.12 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*before 3.6.12; 4.0.0 to before 4.1.8; 4.2.0 to before 4.2.3VulnerableApache
  • cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:* Versions before 3.6.12; 4.0.0 to before 4.1.8; 4.2.0 to before 4.2.3 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache CXF (Apache Software Foundation) Fixed in 4.2.3, 4.1.8, 3.6.12

Red Hat 4 advisories

  • RHSA-2026:95887 Released 2026-11-06 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 8.1.9 security update
    • Red Hat JBoss Enterprise Application Platform 8.1
  • RHSA-2026:92056 Released 2026-10-28 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 8.1.9 security update
    • Red Hat JBoss EAP 8.1 for RHEL 9 eap8-apache-cxf-4.1.8-1.redhat_00001.1.el9eap, eap8-apache-cxf-rt-4.1.8-1.redhat_00001.1.el9eap, eap8-apache-cxf-services-4.1.8-1.redhat_00001.1.el9eap +32
  • RHSA-2026:92057 Released 2026-10-28 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 8.1.9 security update
    • Red Hat JBoss EAP 8.1 for RHEL 8 eap8-apache-cxf-4.1.8-1.redhat_00001.1.el8eap, eap8-apache-cxf-rt-4.1.8-1.redhat_00001.1.el8eap, eap8-apache-cxf-services-4.1.8-1.redhat_00001.1.el8eap +33
Show 1 more Red Hat advisories
  • RHSA-2026:92059 Released 2026-10-28 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 8.1.9 security update
    • Red Hat JBoss EAP 8.1 for RHEL 10 eap8-apache-cxf-4.1.8-1.redhat_00001.1.el10eap, eap8-apache-cxf-rt-4.1.8-1.redhat_00001.1.el10eap, eap8-apache-cxf-services-4.1.8-1.redhat_00001.1.el10eap +32

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache CXF 3.6.12, 4.1.8, 4.2.3

    12 records Highest priority Priority MEDIUM 10 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-47481 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessagePriority MEDIUM 51
    • TI-2026-47860 Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replayPriority MEDIUM 50
    • TI-2026-46751 Apache CXF: Self-issued ID token claims validation skippedPriority MEDIUM 47
    Show all 12 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat JBoss Enterprise Application Platform 7AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Application Platform Expansion PackAffectedNo fix yet
Red Hat JBoss Web Server 5AffectedNo fix yet
Red Hat build of Apache Camel for Spring Boot 4AffectedNo fix yet
Red Hat JBoss EAP 8.1 for RHEL 10Fixed RHSA-2026:92059
Red Hat JBoss EAP 8.1 for RHEL 8Fixed RHSA-2026:92057
Red Hat JBoss EAP 8.1 for RHEL 9Fixed RHSA-2026:92056
Red Hat JBoss Enterprise Application Platform 8.1Fixed RHSA-2026:95887
Not affected: 3 products
  • Red Hat JBoss EAP 8.1 for RHEL 10
  • Red Hat JBoss EAP 8.1 for RHEL 8
  • Red Hat JBoss EAP 8.1 for RHEL 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-64958
  2. 2026-10-03 Alias added: GHSA-3p6r-x275-5x98
  3. 2026-10-05 EPSS moved to the 50th–90th percentile
  4. 2026-10-06 Affected versions changed · Red Hat
  5. 2026-10-21 Affected versions changed · Red Hat
  6. 2026-10-24 Affected versions changed · Red Hat
  7. 2026-10-29 Fix available: Red Hat JBoss EAP 8.1 for RHEL 10, Red Hat JBoss EAP 8.1 for RHEL 8, Red Hat JBoss EAP 8.1 for RHEL 9 · Red Hat
  8. 2026-10-29 Fix available: RHSA-2026:92057 · Red Hat
  9. 2026-10-29 Fix available: RHSA-2026:92059 · Red Hat
  10. 2026-10-29 Fix available: RHSA-2026:92056 · Red Hat
  11. 2026-11-06 Fix available: RHSA-2026:95887 · Red Hat
  12. 2026-11-06 Fix available: Red Hat JBoss Enterprise Application Platform 8.1 · Red Hat

References

Advisory 1

  • TI-2019-09264 Incorrect authorization in Apache CXF CVSS 3.1CRITICAL 9.8
  • TI-2020-10930 Apache CXF Reflected XSS in the services listing page via the styleSheetPath CVSS 3.1MEDIUM 6.1
  • TI-2010-01990 Apache CXF 2.0.x before 2.0.13, 2.1.x before 2.1.10, and 2.2.x before 2.2.9, as used in… CVSS 3.1CRITICAL 9.8
  • TI-2022-22907 Apache CXF SSRF Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-47481 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage CVSS 3.1CRITICAL 9.8
  • TI-2025-31053 Apache CXF: Untrusted JMS configuration can lead to RCE CVSS 3.1CRITICAL 9.8
See all 79 →

Sources

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