Astra Linux – Vulnerability in Waitress

Waitress version 1.3.1 allows for the smuggling of requests by sending the Content-Length header twice. Waitress would fold the two Content-Length headers together, and since it cannot convert the now comma-separated values into integers, it internally sets the Content-Length to 0. If two...

CVE-2022-45059-demo

CVE-2022-45059-demo Varnish Cacheのリリース7.0.0、7.0.1、7.0.2、7.0.3、7.1.0、7.1.1および7.2.0には、攻撃者がcontent-lengthヘッダーをホップバイホップにすることを要求できるリクエストスマグリングの脆弱性があります。 これは、脆弱性のあるバージョンのVarnish Cacheの背後で動作するSpring Boot Webアプリケーションで構成されたデモです。 「被害者」が5秒ごとにアプリケーションへリクエストを送信し、目的はそのクッキーを盗むことです。 アプリケーションの実行 オプション1 -...

CVE-2024-38828

CVE-2024-38828 脆弱性 説明 このテストは、Spring Framework において CVE-2024-38828 の脆弱性がある場合とない場合の動作・応答を検証します。 ByteArrayHttpMessageConverter では、リクエストヘッダー Content-Length に基づいて ByteArrayOutputStream にメモリが割り当てられますが、実際のボディが 0 バイトである場合と一致しない可能性があります。このようなリクエストが急増すると DoS、メモリ使用効率が悪くなり、定期的な GC...

CLEANSTART-2026-HZ65290 Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header

Security vulnerability affects the consul package. Consul and Consul Enterprise’s “Consul” event endpoint is vulnerable to denial of service DoS due to lack of maximum value on the Content Length header...

Rocky Linux 8 [CIQ] Security Update: varnish / varnish-devel / varnish-docs / varnish-modules / etc (crlsa-2021_2988)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20212988 advisory. varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request CVE-2021-36740 Tenable has extracted the preceding description block...

AlmaLinux 9.2 [TuxCare] Security Update: haproxy Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1736503350)

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1736503350 advisory. - HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x befor...

CVE-2026-58268: Memory Allocation with Excessive Size Value

SIPGO is a library for writing SIP services in the GO language. Prior to 1.4.1, ParserStream.parseSingle in sip/parserstream.go allocates a SIP body buffer from the client-controlled Content-Length header before ParseMaxMessageLength is enforced. An unauthenticated peer can send a stream-transpor...

EUVD-2026-83287

IBM WebSphere Application Server 8.5 is affected by an HTTP request smuggling vulnerability due to improper handling of Content-Length headers...

DEBIAN-CVE-2026-93560

A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an infinite decode loop, causing a Denial of Service DoS by exhausting memo...

CVE-2026-93560

A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an infinite decode loop, causing a Denial of Service DoS by exhausting memo...

GHSA-8H4C-X2WG-6XP8 Http4s Ember accepts Transfer-Encoding combined with Content-Length (CL.TE request smuggling)

Summary Ember's HTTP/1.1 request parser does not reject a message that carries both a Transfer-Encoding and a Content-Length header. RFC 9112 §6.1 requires a server to treat such a message as a framing error and close the connection. An intermediary that follows the RFC's CL-strip-and-forward pat...

CVE-2026-58483

mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.7.1, weburlread in src/index.ts passes a caller-supplied URL to readUrlContent in src/url-reader.ts, where checkContentLength treats a missing Content-Length...

CVE-2026-58483

mcp-searxng , a Model Context Protocol server for SearXNG integration, is vulnerable to denial of service in versions prior to 1.7.1 . The web_url_read function in src/index.ts passes a caller-supplied URL to readUrlContent() in src/url-reader.ts, where checkContentLength() treats a missing Conte...

EUVD-2026-79124

mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.7.1, weburlread in src/index.ts passes a caller-supplied URL to readUrlContent in src/url-reader.ts, where checkContentLength treats a missing Content-Length...

CVE-2023-54397 Tornado before 6.3.3 HTTP Request Smuggling via Content-Length

Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation and smuggle requests when deployed behind certain...

CVE-2023-54397: Inconsistent Interpretation of HTTP Requests

Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation and smuggle requests when deployed behind certain...

PT-2026-92427

Name of the Vulnerable Software and Affected Versions Http4s versions prior to 0.23.35 Http4s versions prior to 1.0.0-M47 Description Ember's HTTP/1.1 parser accepts duplicate Content-Length headers with different values and utilizes the last value instead of rejecting the message. This behavior...

Astra Linux – Vulnerability in libproxy

In libproxy, the url.cpp module in version 0.4.15 is vulnerable to a buffer overflow when PAC is enabled. This vulnerability was confirmed by using a large PAC file that was sent without a Content-length header...

Astra Linux – Vulnerability in Twisted

In Twisted Web version 19.10.0, there was an HTTP request splitting vulnerability. When two content-length headers were provided, the system ignored the first header. When the second content-length value was set to zero, the request body was interpreted as a pipelined request...

Astra Linux – Vulnerability in HAPProxy

HAProxy versions 2.0.32, 2.1.x, and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 send empty Content-Length headers, violating section 8.6 of RFC 9110. In rare cases, an HTTP/1 server behind HAPProxy may interpret...