Vinyl/Varnish -- HTTP/2 parsing deficiency

Vinyl Development Team reports: A deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass or possibly even information disclosure and manipulation...

The vulnerability of the Apache Tomcat application server, related to deficiencies in HTTP request processing, allows attackers to send hidden HTTP requests (HTTP Request Smuggling attack).

The vulnerability of the Apache Tomcat application server is related to deficiencies in HTTP request processing. Exploiting this vulnerability allows a malicious actor to send hidden HTTP requests remotely HTTP Request Smuggling attack...

Updated haproxy packages fix security vulnerability

The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. CVE-2026-33555...

MGASA-2026-0146 Updated haproxy packages fix security vulnerability

The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. CVE-2026-33555...

CLSA-2026-1778836031 libsoup: Fix of CVE-2026-2708

CVE-2026-2708: reject duplicate Content-Length headers with different values to prevent HTTP request smuggling per RFC 9110 section 7.7...

CLSA-2026-1778756991 libsoup: Fix of CVE-2026-2708

CVE-2026-2708: reject duplicate Content-Length headers with different values to prevent HTTP request smuggling per RFC 9110 section 7.7...

CVE-2026-39805

A flaw was found in Bandit, an HTTP server. This vulnerability allows for HTTP request smuggling due to the server's inconsistent handling of duplicate Content-Length headers in HTTP requests. An unauthenticated attacker can exploit this by sending a specially crafted request. If Bandit is...

CVE-2026-41417

A flaw was found in Netty. A remote attacker can bypass request-line validation by manipulating the URI after a DefaultHttpRequest or DefaultFullHttpRequest is created. This vulnerability, a form of Carriage Return Line Feed CRLF injection, allows for the insertion of additional HTTP or RTSP...

OESA-2026-2339 libsoup3 security update

Libsoup is an HTTP library implementation in C. It was originally part of a SOAP Simple Object Access Protocol implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. Security Fixes: A flaw was found in the asynchronous message queue handling of the...

SUSE CVE-2026-42580

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's chunk size parser silently overflows int, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final...

SUSE CVE-2026-42581

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absen...

SUSE CVE-2026-42585

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty incorrectly parses malformed Transfer-Encoding, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final...

CLSA-2026-1778789568 httpd: Fix of CVE-2022-36760

CVE-2022-36760: modproxyajp: fix possible request smuggling via invalid Transfer-Encoding...

CLSA-2026-1778789558 httpd: Fix of CVE-2022-36760

CVE-2022-36760: modproxyajp: fix possible request smuggling via invalid Transfer-Encoding...

org.eclipse.jetty/jetty-http: HTTP request smuggling via chunked extension quoted-string parsing

A flaw was found in Eclipse Jetty. The HTTP/1.1 parser is vulnerable to request smuggling when chunk extensions are used. An attacker can inject crafted requests to manipulate and trick the parser. This issue can lead to security controls bypass, cache poisoning or unauthorized endpoint access...

io.netty/netty-codec-http: Netty: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values

A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/1.1 chunked transfer encoding extension values. Due to incorrect parsing of quoted strings, this flaw enables request smuggling attacks, potentially allowing an attacker to bypass...

Security Bulletin: IBM Integration Bus for z/OS is vulnerable to multiple vulnerabilities due to Apache Tomcat

Summary IBM Integration Bus for z/OS is vulnerable to multiple vulnerabilities due to Apache Tomcat. Vulnerability Details CVEID:CVE-2026-24880 DESCRIPTION: Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in Apache Tomcat via invalid chunk extension...

Security Bulletin: Erlang OTP inets httpd HTTP Request Smuggling via Duplicate Content-Length Handling

Summary Inconsistent Interpretation of HTTP Requests 'HTTP Request Smuggling' vulnerability in Erlang OTP inets httpd module allows HTTP Request Smuggling. This vulnerability is associated with program files lib/inets/src/httpserver/httpdrequest.erl and program routines httpdrequest:parseheaders/...

Linux Distros Unpatched Vulnerability : CVE-2026-42581

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting...

Linux Distros Unpatched Vulnerability : CVE-2026-42580

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's chunk size parser silently overflows int,...