CVE-2026-73256

Mongoose (an embedded web server and network library by cesanta) prior to 7.22 is vulnerable to HTTP request smuggling via chunked Transfer-Encoding. The root cause is a logic error in http_cb() in src/http.c: it tests hm.proto.len with an impossible greater-than-eight condition, so is_http_1_0 i...

CVE-2026-73257 Mongoose: Content-Length + Transfer-Encoding coexistence enables request smuggling

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The clcount and tecount checks in the mghttpparse and httpcb paths in src/http.c accept both...

CVE-2026-73257

Mongoose versions before 7.22 allow CL.TE request smuggling: mg_http_parse() and http_cb() in src/http.c accept both Content-Length and Transfer-Encoding: chunked headers, prioritizing chunked encoding while a Content-Length-preferring reverse proxy uses a different boundary, enabling injected re...

EUVD-2026-63492

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The clcount and tecount checks in the mghttpparse and httpcb paths in src/http.c accept both...

CVE-2026-73257

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The clcount and tecount checks in the mghttpparse and httpcb paths in src/http.c accept both...

Security Bulletin: IBM® Db2® federated server is affected by multiple vulnerabilities in Netty open source libraries.

Summary IBM® Db2® federated server is affected by multiple vulnerabilities in Netty open source libraries. Vulnerability Details CVEID:CVE-2026-50020 DESCRIPTION: Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and...

OESA-2026-3451 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: The fix for CVE-2026-0716 commit 6ff7ef0, libsoup 3.6.6 placed the integer...

PT-2026-79081

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The cl count and te count checks in the mg http parse and http cb paths in src/http.c accept bot...

CVE-2026-63382: Inconsistent Interpretation of HTTP Requests

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, the libevent evhttp parser in http.c inconsistently handles duplicate Transfer-Encoding headers, comma-separated Transfer-Encoding values, and bare line feeds in chunked framing. evhttpfindheader can select only the first...

CVE-2026-73257: Inconsistent Interpretation of HTTP Requests

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The clcount and tecount checks in the mghttpparse and httpcb paths in src/http.c accept both...

Security Bulletin: IBM SPSS Analytic Server is affected by multiple vulnerabilities in Netty

Summary IBM SPSS Analytic Server is affected by multiple vulnerabilities in Netty. This has been addressed in the remediation section. Vulnerability Details CVEID:CVE-2026-59899 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and...

CentOS 9 : nghttp2-1.43.0-8.el9

The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the nghttp2-1.43.0-8.el9 build changelog. - nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content- Length header and body onto reusable...

MiracleLinux 8 : nghttp2-1.33.0-6.el8_10.3 (AXSA:2026-1576:03)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1576:03 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted t...

CVE-2026-50576 ePA 3.x Integration: HTTP Header Injection in VAU Inner Requests

ePA 3.x Integration implements the authorization workflow and writes Medical Information Objects to Germany's electronic patient record. Prior to 1.3.0, ePA 3.x Integration does not neutralize CRLF characters in values used by app/vau/VAUProtokoll.py to construct VAU inner HTTP requests. The...

USN-8641-1: .NET vulnerabilities

Miha Zupan discovered that .NET did not properly interpret certain HTTP requests. An attacker could possibly use this issue to perform request smuggling and bypass a security feature. CVE-2026-62899 Ivan Demchuk discovered that .NET did not properly handle the removal of sensitive information...

SUSE CVE-2026-73051

actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backe...

IBM HTTP Server 8.5.x / 9.x Web Server Plug-in RCE (7274072)

The version of IBM HTTP Server running on the remote host is affected by multiple vulnerabilities as referenced in the 7274072 advisory. - IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server...

GLSA-202608-16 : nginx: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202608-16 nginx: Multiple Vulnerabilities Multiple vulnerabilities have been discovered in nginx. Please review the CVE identifiers referenced below for details. Tenable has extracted the preceding description block directly from...

.NET: .NET Core: .NET Security Feature Bypass Vulnerability

Inconsistent interpretation of http requests 'http request/response smuggling' in .NET allows an unauthorized attacker to bypass a security feature over a network...

.NET: .NET Core: .NET Security Feature Bypass Vulnerability

Inconsistent interpretation of http requests 'http request/response smuggling' in .NET allows an unauthorized attacker to bypass a security feature over a network...