CVE-2026-45352 cpp-httplib DoS: Negative chunk-size in chunked Transfer-Encoding

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.43.4, negative chunk-size in chunked Transfer-Encoding causes unbounded memory allocation and process crash. The ChunkedDecoder::readpayload function in cpp-httplib httplib.h parses the chunk-size field o...

CVE-2026-45352

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.43.4, negative chunk-size in chunked Transfer-Encoding causes unbounded memory allocation and process crash. The ChunkedDecoder::readpayload function in cpp-httplib httplib.h parses the chunk-size field o...

CVE-2026-45352

The CVE-2026-45352 issue affects cpp-httplib (header-only HTTP/HTTPS library). Before version 0.43.4, the ChunkedDecoder::read_payload routine parses the chunk-size in chunked Transfer-Encoding with std::strtoul(), which can silently accept a minus sign. This allows negative chunk sizes (e.g., "-...

CVE-2026-45352 cpp-httplib DoS: Negative chunk-size in chunked Transfer-Encoding

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.43.4, negative chunk-size in chunked Transfer-Encoding causes unbounded memory allocation and process crash. The ChunkedDecoder::readpayload function in cpp-httplib httplib.h parses the chunk-size field o...

OESA-2026-2532 trafficserver security update

Apache Traffic Server is an OpenSource HTTP / HTTPS / HTTP/2 / QUIC reverse, forward and transparent proxy and cache. Security Fixes: A bug in POST request handling causes a crash under a certain condition. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.1, from 9.0.0 through...

UBUNTU-CVE-2026-6324

A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the soupbodyinputstreamreadchunked function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a...

CVE-2026-6324

A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the soupbodyinputstreamreadchunked function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a...

CVE-2026-6324

A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the soupbodyinputstreamreadchunked function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a...

EUVD-2026-33249

A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the soupbodyinputstreamreadchunked function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a...

CVE-2026-6324

Affected software: libsoup. Vulnerability: unsigned-to-signed conversion error in soup_body_input_stream_read_chunked(). Impact: remote attacker can bypass security controls, poison web caches, or gain unauthorized access when libsoup sits behind or fronts a non-libsoup server. Context: exploit v...

libsoup 安全漏洞

Libsoup is a GNOME project’s HTTP client/server library. Libsoup has a security vulnerability, which stems from an error in the unsigned-to-signed conversion in the soupbodyinputstreamreadchunked function. This vulnerability could allow remote attackers to bypass security controls by sending...

cpp-httplib 安全漏洞

cpp-httplib is a C++ library developed by Yhirose, which includes HTTP/HTTPS server and client components. Versions of cpp-httplib prior to 0.43.4 contained security vulnerabilities. These vulnerabilities stemmed from negative chunk sizes in chunked transmission encoding, leading to unbounded...

Linux Distros Unpatched Vulnerability : CVE-2026-6324

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the soupbodyinputstreamreadchunked function by sending a...

curl: Proxy CONNECT response poisoning via authentication retry in cf-h1-proxy.c (libcurl)

Summary: When an HTTP/1.x proxy returns a 407 with no Content-Length and no chunked transfer-encoding, lib/cf-h1-proxy.c singleheader sets ts-keepon = KEEPONDONE but never sets ts-closeconnection = TRUE. Because ts-closeconnection and conn-bits.close both stay false, the CONNECT tunnel state...

Linux Distros Unpatched Vulnerability : CVE-2026-49017

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In OpenStack Swift before 2.36.2 and 2.37.2, s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body. The StreamingInp...

CVE-2026-39806

Loop with Unreachable Exit Condition 'Infinite Loop' vulnerability in mtrudel bandit allows unauthenticated remote denial of service via worker process exhaustion. 'Elixir.Bandit.HTTP1.Socket':doreadchunkeddata!/5 in lib/bandit/http1/socket.ex terminates only when the last-chunk line 0\r\n is...

CVE-2026-39803

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated remote denial of service via memory exhaustion. The chunked clause of 'Elixir.Bandit.HTTP1.Socket':readdata/2 in lib/bandit/http1/socket.ex ignores the caller-supplied :length option when...

CrowdSec AppSec silently drops request body for chunked / HTTP-2 requests

Summary The CrowdSec AppSec component fails to read the HTTP request body for any request whose Content-Length is not positive — most notably HTTP/1.1 requests using Transfer-Encoding: chunked and HTTP/2 requests sent without a content-length header. Coraza is then evaluated against an empty body...

GHSA-RW47-HM26-6WR7 CrowdSec AppSec silently drops request body for chunked / HTTP-2 requests

Summary The CrowdSec AppSec component fails to read the HTTP request body for any request whose Content-Length is not positive — most notably HTTP/1.1 requests using Transfer-Encoding: chunked and HTTP/2 requests sent without a content-length header. Coraza is then evaluated against an empty body...

GHSA-G7JQ-J257-RWW2 OpenStack Swift: s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body

In OpenStack Swift before 2.36.2 and 2.37.2, s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body. The StreamingInput class repeatedly appends an empty buffer and re-reads, causing the proxy-server worker handling the request to become permanently...