www/varnish7 -- Request Smuggling Attack

The Varnish Development Team reports: A client-side desync vulnerability can be triggered in Varnish Cache and Varnish Enterprise. This vulnerability can be triggered under specific circumstances involving malformed HTTP/1 requests. An attacker can abuse a flaw in Varnish's handling of chunked...

OESA-2025-1497 python-h11 security update

h11 is suitable for implementing both servers and clients, and has a pleasantly symmetric API: the events you send as a client are exactly the ones that you receive as a server and vice-versa. Security Fixes: h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's...

OESA-2025-1496 python-h11 security update

h11 is suitable for implementing both servers and clients, and has a pleasantly symmetric API: the events you send as a client are exactly the ones that you receive as a server and vice-versa. Security Fixes: h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's...

SUSE CVE-2025-46728

cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or when no Content-Length header is provided. A remote attacker can send a chunked...

Apache Traffic Server (ATS) Environment Issue Vulnerability

Apache Traffic Server ATS is the United States Apache Apache Foundation's set of scalable HTTP proxy and caching server. Apache Traffic Server ATS suffers from an environmental issue vulnerability that stems from malformed chunked messages that could lead to request smuggling. An attacker...

RLSA-2024:1375 Important: squid:4 security update

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Security Fixes: squid: denial of service in HTTP header parser CVE-2024-25617 squid: Denial of Service in HTTP Chunked Decoding CVE-2024-25111 squid: denial of service in HTTP request...

RockyLinux 8 : squid:4 (RLSA-2024:1375)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:1375 advisory. squid: denial of service in HTTP header parser CVE-2024-25617 squid: Denial of Service in HTTP Chunked Decoding CVE-2024-25111 squid: denial of service i...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the handling of incoming HTTP requests with Transfer-Encoding: chunked or without a Content-Length header. An attacker can cause uncontrolled memory allocation on the server b...

DEBIAN-CVE-2025-46728

cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or when no Content-Length header is provided. A remote attacker can send a chunked...

UBUNTU-CVE-2025-46728

cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or when no Content-Length header is provided. A remote attacker can send a chunked...

CVE-2025-46728 cpp-httplib has Unbounded Memory Allocation in Chunked/No-Length Requests

cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or when no Content-Length header is provided. A remote attacker can send a chunked...

CVE-2025-46728 cpp-httplib has Unbounded Memory Allocation in Chunked/No-Length Requests

cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or when no Content-Length header is provided. A remote attacker can send a chunked...

CVE-2025-46728

Summary (CVE-2025-46728) : The cpp-httplib library (a header-only C++ HTTP/S library) is vulnerable in versions before 0.20.1 due to failure to enforce size limits on incoming request bodies when using Transfer-Encoding: chunked or when no Content-Length is provided. A remote attacker can send ch...

PT-2025-19817

Name of the Vulnerable Software and Affected Versions cpp-httplib versions prior to 0.20.1 Description cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. The library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or...

HTTP Request Smuggling

h11 is vulnerable to HTTP Request Smuggling. The vulnerability is due to improper input validation in lenient parsing of line terminators in chunked transfer encoding, which can be exploited when combined with a misconfigured proxy...

Security update for python-h11

This update for python-h11 fixes the following issues: CVE-2025-43859: leniency when parsing of line terminators in chunked-coding message bodies can lead to request smuggling. bsc1241872 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST...

Important: docker

Issue Overview: The net/http package accepted data in the chunked transfer encoding containing an invalid chunk-size line terminated by a bare LF. When used in conjunction with a server or proxy which incorrectly interprets a bare LF in a chunk extension as part of the extension, this could permi...

Important: docker

Issue Overview: The net/http package accepted data in the chunked transfer encoding containing an invalid chunk-size line terminated by a bare LF. When used in conjunction with a server or proxy which incorrectly interprets a bare LF in a chunk extension as part of the extension, this could permi...

Important: docker

Issue Overview: The net/http package accepted data in the chunked transfer encoding containing an invalid chunk-size line terminated by a bare LF. When used in conjunction with a server or proxy which incorrectly interprets a bare LF in a chunk extension as part of the extension, this could permi...

FreeBSD : h11 accepts some malformed Chunked-Encoding bodies (df126e23-24fa-11f0-ab92-f02f7497ecda)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the df126e23-24fa-11f0-ab92-f02f7497ecda advisory. h11 reports: h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's...