CVE-2026-66357 inets,httpd:HTTP Request Smuggling via obs-fold Header Continuation

httpd has never implemented obs-fold RFC 2616 §2.2 / RFC 7230 §3.2.4 header continuation lines. Every CRLF followed by a non-CRLF octet unconditionally starts a new header. This missing feature became a security concern as the understanding of HTTP request smuggling attacks evolved. This issue...

CVE-2026-66357

Erlang/OTP's inets httpd component has never implemented obs-fold (RFC 2616 §2.2 / RFC 7230 §3.2.4 header continuation lines), meaning every CRLF followed by a non-CRLF octet unconditionally starts a new header. This missing feature enables HTTP request smuggling against servers built on this com...

CVE-2026-66357

httpd has never implemented obs-fold RFC 2616 §2.2 / RFC 7230 §3.2.4 header continuation lines. Every CRLF followed by a non-CRLF octet unconditionally starts a new header. This missing feature became a security concern as the understanding of HTTP request smuggling attacks evolved. This issue...

Security Bulletin: IBM Storage Fusion Data Foundation is vulnerable to Request Smuggling.

Summary undici is used by IBM Storage Fusion Data Foundation, which could cause Request Smuggling. CVE-2026-1525, CVE-2026-1526, CVE-2026-1527, CVE-2026-1528, CVE-2026-2229. Vulnerability Details CVEID:CVE-2026-1525 DESCRIPTION: Undici allows duplicate HTTP Content-Length headers when they are...

CVE-2026-71554

A flaw was found in h2, a Python library for HTTP/2. This vulnerability allows a remote attacker to perform request smuggling. The library incorrectly processes HTTP/2 requests that contain more than one Host header. When these requests are downgraded to HTTP/1.1 by a consuming application, the...

PT-2026-84395

Name of the Vulnerable Software and Affected Versions Elasticsearch affected versions not specified Description Inconsistent interpretation of HTTP requests, known as HTTP Request Smuggling, allows a network attacker to obtain confidential responses intended for other authenticated users. This...

Security Bulletin: Security Vulnerability in Spring Cloud Affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2025-41235)

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerability in Spring Cloud Vulnerability Details CVEID:CVE-2025-41235 DESCRIPTION: Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies. CWE:CWE-444:...

CVE-2026-71324

A flaw was found in Traefik. Traefik's HTTP reverse proxy can improperly handle HTTP/2 or HTTP/3 CONNECT requests forwarded to an HTTP/1.1 upstream. If the upstream sends a keep-alive non-2xx response and does not fully drain the body, the desynchronized backend socket is returned to a shared poo...

CVE-2026-73051

A flaw was found in actix-http. This vulnerability allows unauthenticated remote attackers to perform HTTP request smuggling. By sending specially crafted HTTP/1.1 requests that include both Content-Length and Transfer-Encoding: chunked headers, an attacker can desynchronize backend requests...

CVE-2026-74848

Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in Apache APISIX. An attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes. This issue affects Apache APISIX: from 2.12.0 through 3.17.0. Users ar...

EUVD-2026-66958

Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in Apache APISIX. An attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes. This issue affects Apache APISIX: from 2.12.0 through 3.17.0. Users ar...

PT-2026-82448

Name of the Vulnerable Software and Affected Versions Apache APISIX versions 2.12.0 through 3.17.0 Description An inconsistent interpretation of HTTP requests, known as HTTP Request/Response Smuggling, occurs on serverless-plugin routes. This allows an attacker to manipulate the request stream so...

Security Bulletin: IBM Informix Wire Listener is affected by a vulnerability in the third-party Netty library (CVE-2026-59900).

Summary IBM Informix Wire Listener is affected by CVE-2026-59900. To address this issue, Netty has been updated to the latest version in IBM Informix versions 14.10.xC14 and 15.0.1.14. Vulnerability Details CVEID:CVE-2026-59900 DESCRIPTION: Netty is an asynchronous, event-driven network applicati...

SAP Memory Pipes (MPI) Desynchronization

SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable to request smuggling and request concatenation attacks. An unauthenticated attacker can prepend a victim's request with arbitrary data. This...

RHEL 10 / 9 : Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update (Important) (RHSA-2026:59136)

The remote Redhat Enterprise Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:59136 advisory. Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing IT automation at scale. IT...

Security Bulletin: IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities

Summary IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service, HTTP Response and Request Smuggling vulnerabilities when servlet-3.0, servlet-3.1, servlet-4.0, servlet-5.0, servlet-6.0, or servlet-6.1 is enabled. Vulnerability Details...

aiohttp: AIOHTTP: HTTP Request Smuggling via WebSocket Upgrade

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework. This vulnerability allows a remote attacker to perform HTTP request smuggling due to an edge case in the WebSocket upgrade procedure. When a WebSocket upgrade request includes a body, the parser may switch protocols before...

aiohttp: AIOHTTP: HTTP Request Smuggling via WebSocket Upgrade

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework. This vulnerability allows a remote attacker to perform HTTP request smuggling due to an edge case in the WebSocket upgrade procedure. When a WebSocket upgrade request includes a body, the parser may switch protocols before...

Astra Linux – Vulnerability in Netty

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high-performance protocol servers and clients. In Netty io.netty:netty-codec-http2, before version 4.1.60.Final, there was a vulnerability that allowed for request smuggling. If...

Astra Linux – Vulnerability in Tomcat9

There is an input validation vulnerability in Apache Tomcat. Versions of Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81, and from 8.5.0 through 8.5.93 did not properly parse HTTP trailer headers. A specially crafted, invalid trailer header...