CVE-2026-9190 HTTP request smuggling in Progress MarkLogic Server

An HTTP request smuggling vulnerability in the HTTP App Server of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows a remote attacker to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials. The vulnerability occurs when a crafted HTTP...

CVE-2026-45103

A flaw was found in OpenSIPS, a Session Initiation Protocol SIP server. An integer overflow vulnerability exists in the TCP message framing layer when parsing the Content-Length header. An unauthenticated, network-based attacker can exploit this by sending a crafted Content-Length value, causing...

ALPINE-CVE-2026-58044

A flaw in Node.js HTTP client can cause a request desynchronization for Node.js-based forwarding proxies that rebuild outbound headers from the visible IncomingMessage headers while piping the original body to a reused backend connection. Node.js can omit headers beyond maxHeadersCount /...

EUVD-2026-50566

undici vulnerable to downstream response desynchronization via retry interceptor...

CVE-2026-16728

undici's retry interceptor can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume of a partial response. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a malicious or faulty...

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...

PYSEC-2026-3040 python-multipart: Negative Content-Length in parse_form buffers the entire body in memory

Summary parseform did not validate the Content-Length header before using it to bound its chunked read of the request body. A negative Content-Length turned the bounded read into a read-until-EOF, so the entire body was loaded into memory in a single read instead of in fixed-size chunks. Details...

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-2026-51599

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

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...

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...

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

ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling. NOTE: the Supplier reports that "The project README states that it is suitable for testing and development, and that its developers do not encourage its use to serve...

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...