EUVD-2024-32593

A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service DoS attack...

CVE-2024-4027

A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service DoS attack...

CVE-2024-4027 Undertow: outofmemoryerror in httpservletrequestimpl.getparameternames() can cause remote dos attacks

A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service DoS attack...

CVE-2024-4027

The CVE-2024-4027 entry describes a flaw in Undertow where Servlets calling HttpServletRequestImpl.getParameterNames() can trigger an OutOfMemoryError when clients send requests with large parameter names, enabling a remote DoS. Affected: Undertow (Servlet handling path). Root cause: large parame...

CVE-2024-4027

A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service DoS attack...

Undertow input validation error vulnerability

Undertow is a web server provided by the Undertow company in the United States. Undertow has a vulnerability related to input validation errors, which stem from Servlets that call the method HttpServletRequestImpl.getParameterNames. This vulnerability could lead to a remote denial-of-service atta...

Undertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrf (CVE-2025-12543)

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests. As a result, requests containing malformed or malicious Host headers are processed withou...

undertow: Improper State Management in Proxy Protocol parsing causes information leakage

A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the...

Critical: Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.3.16 security update

An update is now available for Red Hat JBoss Enterprise Application Platform 7.3 for Red Hat Enterprise Linux 7. 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, ...

RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.3.16 (RHSA-2026:0743)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0743 advisory. Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release o...

RHEL 9 : Red Hat JBoss Enterprise Application Platform 8.1.3 (RHSA-2026:0384)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0384 advisory. Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly application runtime. This release o...

RHEL 8 : Red Hat JBoss Enterprise Application Platform 8.1.3 (RHSA-2026:0383)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0383 advisory. Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly application runtime. This release o...

The vulnerability of the Undertow HTTP server’s kernel allows for attacks using SSRF, due to errors in the mechanism for processing input data when handling Host headers.

The vulnerability of the Undertow HTTP server’s kernel is related to errors in the mechanism for checking input data when processing Host headers. Exploiting this vulnerability allows a remote attacker to perform an SSRF attack by sending a specially crafted request...

undertow-core: Undertow HTTP Server Fails to Reject Malformed Host Headers Leading to Potential Cache Poisoning and SSRF

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without...

Important: Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.3 security update

A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1 for Red Hat Enterprise Linux 9. 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...

undertow: Undertow MadeYouReset HTTP/2 DDoS Vulnerability

A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts...

undertow: OutOfMemory when parsing form data encoding with application/x-www-form-urlencoded

A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParseStreamSourceChannel method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows...

undertow: OutOfMemory when parsing form data encoding with application/x-www-form-urlencoded

A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParseStreamSourceChannel method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows...

undertow: Undertow MadeYouReset HTTP/2 DDoS Vulnerability

A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts...

undertow-core: Undertow HTTP Server Fails to Reject Malformed Host Headers Leading to Potential Cache Poisoning and SSRF

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without...