CVE-2026-90678

A flaw was found in HAProxy. A remote, unauthenticated attacker can exploit a vulnerability in the HTTP/3 multiplexer when processing requests without a Content-Length header, leading to HTTP request smuggling. This occurs when HAProxy is configured with QUIC support and an HTTP/3 frontend, and...

Linux Distros Unpatched Vulnerability : CVE-2026-90678

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QU...

CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

UBUNTU-CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

EUVD-2026-76943

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

CVE-2026-90678

HAProxy 3.3.0 through 3.4.4 and 3.5-dev1 through 3.5-dev5 are affected by an HTTP request smuggling vulnerability in the HTTP/3 (QUIC) multiplexer . When an HTTP/3 request with no Content-Length header is forwarded to an HTTP/1.1 backend using chunked transfer coding on a reused connection, the d...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: httpd (UTSA-2023-003824)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003824 advisory. Inconsistent Interpretation of HTTP Requests 'HTTP Request Smuggling' vulnerability in modproxyajp of Apache HTTP Server allows an attacker to smuggle requests to th...

Vulnerabilities Affecting SICK CorivaEngine

SICK CorivaEngine includes the third-party components Netty and Spring Cloud Gateway that are affected by multiple known vulnerabilities. Under certain conditions, these vulnerabilities could allow remote attackers to perform HTTP request smuggling, cause resource exhaustion, or manipulate...

BIT-TOMCAT-2026-24880 Apache Tomcat: Request smuggling via invalid chunk extension

Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in Apache Tomcat via invalid chunk extension. This issue affects Apache Tomcat: from 11.0.0 through 11.0.18, from 10.1.0 through 10.1.52, from 9.0.0 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0...

Debian dsa-6493 : libevent-2.1-7t64 - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6493 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6493-1 [email protected] https://www.debian.org/securit...

netty: io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers

A flaw was found in Netty's HttpObjectDecoder. A remote attacker can exploit this by sending a specially crafted HTTP/1.0 request that includes both Transfer-Encoding: chunked and Content-Length headers. While Netty correctly strips the conflicting Content-Length header for HTTP/1.1 messages, thi...

HTTP Request Smuggling

Overview io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients. Affected versions of this package are vulnerable to HTTP Request Smuggling due to incomplete validation of request Transfer-Encoding headers. An...

CVE-2026-89044 Netty 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final HTTP Request Smuggling via Transfer-Encoding

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

netty: io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers

A flaw was found in Netty's HttpObjectDecoder. A remote attacker can exploit this by sending a specially crafted HTTP/1.0 request that includes both Transfer-Encoding: chunked and Content-Length headers. While Netty correctly strips the conflicting Content-Length header for HTTP/1.1 messages, thi...

Elasticsearch 8.18.x < 8.19.20 / 9.0.x < 9.4.5 / 9.5.x < 9.5.1 Information Disclosure (ESA-2026-141)

The version of Elasticsearch installed on the remote host is 8.18.x prior to 8.19.20, or 9.0.x prior to 9.4.5, or 9.5.x prior to 9.5.1. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-141 advisory. - Inconsistent Interpretation of HTTP Requests 'HTTP Request Smuggling'...

Linux Distros Unpatched Vulnerability : CVE-2026-19203

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request...

Security Bulletin: IBM WebSphere Application Server is affected by an HTTP request smuggling vulnerability (CVE-2026-11710)

Summary IBM WebSphere Application Server is affected by an HTTP request smuggling vulnerability. Vulnerability Details CVEID:CVE-2026-11710 DESCRIPTION: IBM WebSphere Application Server is affected by an HTTP request smuggling vulnerability due to improper handling of Content-Length headers...

Security Bulletin: IBM WebSphere Application Server Liberty prior to 26.0.0.9 is affected by multiple vulnerabilities

Summary IBM WebSphere Application Server Liberty prior to 26.0.0.9 is affected by multiple vulnerabilities. Vulnerability Details CVEID:CVE-2026-10841 DESCRIPTION: IBM WebSphere Application Server 8.5, 9.0, and Liberty are vulnerable to HTTP request smuggling. CWE:CWE-444: Inconsistent...