Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery
cve-program · CVE-2026-15554
Publishedthe 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.
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cve-program · CVE-2026-15554
PublishedUndertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery
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.
- Source published
- 11 Aug 2026 08:49:40 UTC
- Source modified
- 12 Nov 2026 14:08:30 UTC
- Saved here
- 12 Nov 2026 16:16:18 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N