CVE-2026-58055

A flaw in nghttp2's nghttpx proxy allows a remote attacker to perform HTTP request smuggling and cross-client response-queue poisoning. This occurs because the proxy ambiguously forwards HTTP/1.1 Upgrade requests that contain a Content-Length header to reusable keep-alive backend connections...

Security update for nghttp2 (moderate)

openSUSE security update: security update for nghttp2 ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21302-1 Rating: moderate References: bsc1269489 Cross-References: CVE-2026-58055 CVSS scores: CVE-2026-58055 SUSE : 5.4...

EUVD-2026-42643

Tenda CP3 V3.0 firmware V31.1.9.91 does not validate the Content-Length header field in RTSP requests including DESCRIBE, SETUP, and PLAY methods. When a request carrying a Content-Length header is received without a corresponding message body, the RTSP parser enters a persistent body-awaiting...

CVE-2026-51600

Tenda CP3 V3.0 firmware V31.1.9.91 does not validate the Content-Length header field in RTSP requests including DESCRIBE, SETUP, and PLAY methods. When a request carrying a Content-Length header is received without a corresponding message body, the RTSP parser enters a persistent body-awaiting...

OESA-2026-2979 nghttp2 security update

The framing layer of HTTP/2 is implemented as a form of reusable C library. On top of that, we have implemented HTTP/2 client, server and proxy. We have also developed load test and benchmarking tool for HTTP/2. Security Fixes: nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade...

OESA-2026-2978 nghttp2 security update

The framing layer of HTTP/2 is implemented as a form of reusable C library. On top of that, we have implemented HTTP/2 client, server and proxy. We have also developed load test and benchmarking tool for HTTP/2. Security Fixes: nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade...

CVE-2026-51600

Tenda CP3 V3.0 firmware V31.1.9.91 does not validate the Content-Length header field in RTSP requests including DESCRIBE, SETUP, and PLAY methods. When a request carrying a Content-Length header is received without a corresponding message body, the RTSP parser enters a persistent body-awaiting...

CVE-2026-51599

An insufficient input validation vulnerability in the RTSP service of MERCURY MIPC252W v1.0.5 Build 230306 Rel.79931n allows an unauthenticated remote attacker to render an individual TCP connection temporarily unusable via sending an RTSP request with a Content-Length header but no corresponding...

CVE-2026-51599

CVE-2026-51599 affects MERCURY MIPC252W v1.0.5 Build 230306 Rel.79931n. The issue is an insufficient input validation in the RTSP service where an RTSP request with a Content-Length header but no body causes the RTSP parser to enter a body-waiting state, leading to the connection being silently c...

CVE-2026-51600

Tenda CP3 V3.0 firmware V31.1.9.91 does not validate the Content-Length header field in RTSP requests including DESCRIBE, SETUP, and PLAY methods. When a request carrying a Content-Length header is received without a corresponding message body, the RTSP parser enters a persistent body-awaiting...

CVE-2026-51600

Summary: CVE-2026-51600 affects Tenda CP3 V3.0 firmware (V31.1.9.91). The RTSP service does not validate Content-Length when no body is present, causing the RTSP parser to enter a persistent body-awaiting state and the TCP connection to remain open, leading to a TCP resource leak. This is describ...

nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests

A flaw in nghttp2's nghttpx proxy allows a remote attacker to perform HTTP request smuggling and cross-client response-queue poisoning. This occurs because the proxy ambiguously forwards HTTP/1.1 Upgrade requests that contain a Content-Length header to reusable keep-alive backend connections...

CVE-2026-38969

A flaw was found in WEBrick, a Ruby web server toolkit. This vulnerability allows a remote attacker to perform request smuggling by manipulating the Content-Length header in HTTP/1.1 requests. WEBrick incorrectly re-parses the trailer Content-Length, leading to a desynchronization between the pro...

USN-8495-1: nghttp2 vulnerability

It was discovered that the nghttp2 nghttpx proxy incorrectly handled HTTP/1.1 Upgrade requests that included a Content-Length header and body. A remote attacker could possibly use this issue to perform HTTP request and response smuggling attacks against backend services...

SUSE CVE-2026-58055

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 keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting...

Security Bulletin: Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for June 2026.

Summary In addition to many updates of operating system level packages, the following security vulnerabilities are addressed with IBM Cloud Pak for Business Automation released in June 2026. Vulnerability Details CVEID:CVE-2025-12635 DESCRIPTION: IBM WebSphere Application Server 8.5, 9.0 and IBM...

CVE-2026-58055

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 keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting...

EUVD-2026-39975

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 keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting...

CVE-2026-58055

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 keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting...

CVE-2026-58055

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 keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting...