io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to control characters in the chunk-size line

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

io.netty/netty-codec-http: Netty: Incomplete validation of malformed Transfer-Encoding allows HTTP request smuggling

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 ...

io.netty/netty-codec-http2: Netty: HTTP/2 header field values are not validated by default (CR/LF/NUL passthrough)

A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary,...

io.netty/netty-codec-http: Netty: HTTP request smuggling via post-digit whitespace in chunk-size parsing

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

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...

io.netty/netty-codec-http: Netty: Incomplete validation of malformed Transfer-Encoding allows HTTP request smuggling

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 ...

io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to control characters in the chunk-size line

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

CVE-2026-36471

Deserialization of Untrusted Data of the postdata parameter in cnparseurl in CuteNews v.2.1.2 allows a remote attacker to inject arbitrary values into internal request variables including referer via a crafted base64-encoded serialized PHP payload submitted as a POST parameter...

CVE-2026-82412

ntopng is a web-based network traffic monitoring application. Prior to 6.7.260717, the vulnerability-scan endpoints scripts/lua/rest/v2/add/host/toscan.lua and scripts/lua/rest/v2/exec/host/schedulevulnerabilityscan.lua accept the scanports parameter without an administrator gate and pass it...

Security Bulletin: IBM Optim 1.0.0, 1.1.0 and 1.2.0 impacted by vulnerabilities in glibc 2.34, netty-codec-http 4.1.x, ncurses 6.2, and net/http

Summary glibc, netty-codec-http, ncurses, and net/http are bundled with IBM Optim as OS base image and application runtime dependencies. CVE-2026-0861 is an integer overflow in glibc that may cause heap corruption; CVE-2025-58056 is an HTTP request smuggling flaw in Netty; CVE-2022-29458 is an...

Security Bulletin: Impacted IBM Optim 1.0.0, 1.1.0 and 1.2.0 by vulnerabilities in netty-codec-http, Keycloak, LIBPNG

Summary IBM Optim versions 1.0.0, 1.1.0 and 1.2.0 include open-source packages netty-codec-http, Keycloak and LIBPNG that are affected by high-severity vulnerabilities. IBM Optim 2.0.0 resolves these vulnerabilities by upgrading the affected open-source dependencies to a fixed version...

Exploit for HTTP Request Smuggling in Vercel Next.Js

CVE-2026-29057 — Next.js Request Smuggling Lab This repositor...

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...

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...

netty: io.netty/netty-handler-proxy: Netty: HTTP Header Injection via HttpProxyHandler Disabled Validation

A flaw was found in Netty. The HttpProxyHandler component, which handles HTTP CONNECT requests, does not properly validate user-provided outbound headers. This allows an attacker to inject arbitrary HTTP headers into the CONNECT request sent to the proxy server. This could lead to unexpected...

Reliance on Untrusted Inputs in a Security Decision

Overview Affected versions of this package are vulnerable to Reliance on Untrusted Inputs in a Security Decision through the Nexus callback routing logic in chasm/lib/callback/request.go and components/callbacks/request.go. An attacker can make the History service send a state-changing internal...

CVE-2026-94404 MISP CSRF vulnerability allows unauthorized attribute modification

MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user’s browser without that user knowingly approving the change. The affected function did not properly enforce MISP’s usual protection against forged requests. Because of this, an attacker...

CVE-2026-94404 MISP CSRF vulnerability allows unauthorized attribute modification

MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user’s browser without that user knowingly approving the change. The affected function did not properly enforce MISP’s usual protection against forged requests. Because of this, an attacker...

CVE-2026-94404 MISP CSRF vulnerability allows unauthorized attribute modification

MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user’s browser without that user knowingly approving the change. The affected function did not properly enforce MISP’s usual protection against forged requests. Because of this, an attacker...

HTTP Request Smuggling

Http4s is vulnerable to HTTP Request Smuggling. The vulnerability is due to inconsistent HTTP message body framing between Ember and an intermediary when both headers are present, which allows an attacker to smuggle a second request, bypass access controls, poison caches, or cause a victim reques...