CVE-2026-15554

Summary

the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP protocol.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.16.0-22.redhat_00057.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.3.14-11.SP11_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:1.5.26-2.Final_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:5.0.31-3.SP2_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:1.10.0-46.Final_redhat_00044.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:4.1.135-1.Final_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:4.1.135-1.Final_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.5.5-30.SP12_redhat_00020.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.5.5-24.SP12_redhat_00016.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.2.40-2.SP3_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:7.4.25-2.GA_redhat_00001.1.el7eap < *unaffected

Weaknesses

  • CWE-295: Improper Certificate Validation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References