CVE-2026-15554
7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.16.0-22.redhat_00057.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.3.14-11.SP11_redhat_00001.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:1.5.26-2.Final_redhat_00001.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:5.0.31-3.SP2_redhat_00001.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:1.10.0-46.Final_redhat_00044.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:4.1.135-1.Final_redhat_00001.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:4.1.135-1.Final_redhat_00001.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.5.5-30.SP12_redhat_00020.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.5.5-24.SP12_redhat_00016.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.2.40-2.SP3_redhat_00001.1.el7eap < * | unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:7.4.25-2.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
- https://access.redhat.com/errata/RHSA-2026:53644
- https://access.redhat.com/security/cve/CVE-2026-15554
- https://bugzilla.redhat.com/show_bug.cgi?id=2480601
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