CVE-2026-15554 - Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery

CVE-2026-15554 - Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery

https://cvefeed.io/rssfeed/latest.atom / Tue, 08/11/2026 - 13:25
CVE ID :CVE-2026-15554
Published : Aug. 11, 2026, 8:49 a.m. | 38 minutes ago
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.
Severity: 7.4 | HIGH
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.