HIGH

CVE-2026-15554

2026-08-11 CVSS v3.1

CVSS

7.4

Description

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.

Weakness (CWE)

CWE-295 Improper Certificate Validation

EPSS Score

0.24%

Probability of exploitation in next 30 days

14.8th percentile

References

https://access.redhat.com/errata/RHSA-2026:53644 https://access.redhat.com/errata/RHSA-2026:53645 https://access.redhat.com/errata/RHSA-2026:53646 https://access.redhat.com/errata/RHSA-2026:53806 https://access.redhat.com/security/cve/CVE-2026-15554 https://bugzilla.redhat.com/show_bug.cgi?id=2480601

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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