CVE-2026-93573 Io.netty/netty-codec-http: netty split transfer-encoding fields bypass final-chunked validation and enable request smuggling

A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass Transfer-Encoding header validation by splitting the Transfer-Encoding field across multiple headers, with the last field containing a non-final transfer coding like gzip or deflate. This bypass ca...

CVE-2026-93573

A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass Transfer-Encoding header validation by splitting the Transfer-Encoding field across multiple headers, with the last field containing a non-final transfer coding like gzip or deflate. This bypass ca...

CVE-2026-93562

A flaw was found in Netty's HTTP/1 decoder. Incomplete validation of malformed Transfer-Encoding headers allows a remote attacker to perform HTTP request smuggling. By sending specially crafted HTTP requests, an attacker can inject arbitrary HTTP requests, potentially bypassing security controls ...

CVE-2026-93573: Inconsistent Interpretation of HTTP Requests

A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass Transfer-Encoding header validation by splitting the Transfer-Encoding field across multiple headers, with the last field containing a non-final transfer coding like gzip or deflate. This bypass ca...

PT-2026-95697

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A flaw in the HTTP/1 decoder allows remote attackers to perform HTTP request smuggling due to incomplete validation of malformed Transfer-Encoding headers. By sending specially crafted HTTP...

CVE-2026-93562: Undefined Security Weakness

A flaw was found in Netty's HTTP/1 decoder. Incomplete validation of malformed Transfer-Encoding headers allows a remote attacker to perform HTTP request smuggling. By sending specially crafted HTTP requests, an attacker can inject arbitrary HTTP requests, potentially bypassing security controls ...

CVE-2026-84997

react/http is an event-driven, streaming HTTP client and server implementation for ReactPHP. From 0.6.0 until 1.11.1, React\Http\Io\ChunkedDecoder could enter an infinite loop while processing a malformed Transfer-Encoding: chunked body because handleData required its buffer to shrink on every...

tomcat: Apache Tomcat: Request smuggling vulnerability can lead to denial of service

A flaw was found in Apache Tomcat. This vulnerability, known as HTTP Request/Response Smuggling, occurs when Tomcat processes the transfer-encoding header for an HTTP/1.0 request while operating behind a reverse proxy. A remote attacker could exploit this to cause a denial of service, leading to...

tomcat: Apache Tomcat: Request smuggling vulnerability can lead to denial of service

A flaw was found in Apache Tomcat. This vulnerability, known as HTTP Request/Response Smuggling, occurs when Tomcat processes the transfer-encoding header for an HTTP/1.0 request while operating behind a reverse proxy. A remote attacker could exploit this to cause a denial of service, leading to...

libevent: libevent: Multiple HTTP Parser Bugs Enable Request Smuggling

A flaw was found in libevent. The evhttp parser in libevent's http.c component inconsistently handles HTTP Transfer-Encoding headers and chunked framing. This inconsistency allows an unauthenticated remote attacker to desynchronize request boundaries when libevent is used behind a proxy. Successf...

libevent: libevent: Multiple HTTP Parser Bugs Enable Request Smuggling

A flaw was found in libevent. The evhttp parser in libevent's http.c component inconsistently handles HTTP Transfer-Encoding headers and chunked framing. This inconsistency allows an unauthenticated remote attacker to desynchronize request boundaries when libevent is used behind a proxy. Successf...

libevent: libevent: Multiple HTTP Parser Bugs Enable Request Smuggling

A flaw was found in libevent. The evhttp parser in libevent's http.c component inconsistently handles HTTP Transfer-Encoding headers and chunked framing. This inconsistency allows an unauthenticated remote attacker to desynchronize request boundaries when libevent is used behind a proxy. Successf...

CVE-2026-84997: Loop with Unreachable Exit Condition

react/http is an event-driven, streaming HTTP client and server implementation for ReactPHP. From 0.6.0 until 1.11.1, React\Http\Io\ChunkedDecoder could enter an infinite loop while processing a malformed Transfer-Encoding: chunked body because handleData required its buffer to shrink on every...

Linux Distros Unpatched Vulnerability : CVE-2024-14029

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HTTP message parsing process. An attacker can bypass intermediary access controls, poison caches, or cause victim requests to be joined with attacker-controlled prefixes by sending requests containing both...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HTTP message parsing process. An attacker can bypass intermediary access controls, poison caches, or cause victim requests to be joined with attacker-controlled prefixes by sending requests containing both...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HTTP message parsing process. An attacker can bypass intermediary access controls, poison caches, or cause victim requests to be joined with attacker-controlled prefixes by sending requests containing both...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HeaderP.parse process. An attacker can bypass access controls, hijack cross-user requests, or poison server caches by crafting HTTP requests with specially formatted Transfer-Encoding header values that...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HeaderP.parse process. An attacker can bypass access controls, hijack cross-user requests, or poison server caches by crafting HTTP requests with specially formatted Transfer-Encoding header values that...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HeaderP.parse process. An attacker can bypass access controls, hijack cross-user requests, or poison server caches by crafting HTTP requests with specially formatted Transfer-Encoding header values that...