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

the Undertow AJP listener honours forged sslcert and isssl 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...

EUVD-2026-55981

the Undertow AJP listener honours forged sslcert and isssl 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...

CVE-2026-15554

the Undertow AJP listener honours forged sslcert and isssl 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...

PT-2026-70092

Name of the Vulnerable Software and Affected Versions JBoss EAP affected versions not specified Description A flaw exists in the Undertow HTTP/1.1 chunked-transfer decoder. The absence of limits on size and count allows an unauthenticated attacker to trigger an OutOfMemory error in the Java Virtu...

PT-2026-70241

A flaw was found in the ChunkReader component of the Undertow HTTP server, which is used by WildFly and JBoss EAP to handle chunked transfer encoding. The issue occurs because the parser uses a single internal variable to store both the remaining chunk size and state flags. By sending a specially...

Linux Distros Unpatched Vulnerability : CVE-2026-14180

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the ChunkReader component of the Undertow HTTP server, which is used by WildFly and JBoss EAP to handle chunked transfer encoding. The issue...

PT-2026-70095

Name of the Vulnerable Software and Affected Versions Undertow affected versions not specified Description A flaw exists where a remote, unauthenticated attacker can trigger an Out of Memory condition on websockets endpoints. This occurs on any @ServerEndpoint class containing an @OnMessage metho...

PT-2026-70088

Name of the Vulnerable Software and Affected Versions Undertow affected versions not specified Description The Undertow AJP listener accepts forged ssl cert and is ssl AJP attributes without requiring shared-secret authentication. This allows an unauthenticated attacker with direct TCP access to...

CLSA-2026-1768781328 TuxCare security update for io.undertow (2 CVEs)

TuxCare rebuilt 8 io.undertow packages to address 2 CVEs. Fixed in 2.3.10.Final-tuxcare.3...

CLSA-2026-1770682162 TuxCare security update for io.undertow (1 CVE)

TuxCare rebuilt 8 io.undertow packages to address 1 CVE. Fixed in 2.2.33.Final-tuxcare.2...

The vulnerability of the Undertow web server, related to unlimited resource distribution, allows attackers to cause service failures.

The vulnerability of the Undertow web server is related to the unlimited distribution of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

Sensitive Information Exposure

Apache Camel Undertow Component is vulnerable to Sensitive Information Exposure. The vulnerability is due to improper handling of exception responses, where processing errors return full Java stack traces instead of suppressing them, allowing attackers to obtain sensitive information such as...

CVE-2026-56139

A flaw was found in the Apache Camel Undertow component. The camel-undertow HTTP server consumer, when processing errors, could return full Java stack traces in HTTP responses. This occurs because the muteException option, which controls what is returned to the client during errors, defaulted to...

jastow: Jastow Cross-Site Scripting attack due to unsanitized URI

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting XSS attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling...

jastow: Jastow Cross-Site Scripting attack due to unsanitized URI

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting XSS attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling...

jastow: Jastow Cross-Site Scripting attack due to unsanitized URI

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting XSS attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling...

Moderate: Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.7 security update

A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

jastow: Jastow Cross-Site Scripting attack due to unsanitized URI

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting XSS attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling...

CVE-2025-12799

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting XSS attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling...

CVE-2025-12799 Jastow: jastow cross-site scripting attack due to unsanitized uri

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting XSS attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling...