CVE-2026-77341 cpp-httplib: CRLF injection via unvalidated HTTP trailer headers in chunked response writing

cpp-httplib is a C++ header-only HTTP/HTTPS library. In version 0.49.0, the chunked-response trailer output path writes trailer header names and values directly to the socket without validating them, allowing CRLF sequences in a trailer field to inject additional headers or split the HTTP respons...

CVE-2026-77341

cpp-httplib (a C++ header-only HTTP/HTTPS library) version 0.49.0 is vulnerable to CRLF injection in its chunked-response trailer output path. Unlike every other header-writing path in the library, the trailer-writing code applies no field-name or field-value checks to reject carriage return and ...

CVE-2026-77341 cpp-httplib: CRLF injection via unvalidated HTTP trailer headers in chunked response writing

cpp-httplib is a C++ header-only HTTP/HTTPS library. In version 0.49.0, the chunked-response trailer output path writes trailer header names and values directly to the socket without validating them, allowing CRLF sequences in a trailer field to inject additional headers or split the HTTP respons...

curl: 53: HTTP/1 CONNECT chunked-407 trailers bypass CURLOPT_SUPPRESS_CONNECT_HEADERS and lose CURLH_CONNECT classification

Summary When an HTTP/1 proxy returns a chunked 407 Proxy Authentication Required during a CONNECT handshake, any trailer fields in that response are delivered to the header callback even when CURLOPTSUPPRESSCONNECTHEADERS is enabled, and are classified as CURLHTRAILER instead of CURLHCONNECT in t...

PT-2026-82795

Name of the Vulnerable Software and Affected Versions cpp-httplib versions prior to 0.50.0 Description The chunked-response trailer output path writes trailer header names and values directly to the socket without validation. This lack of checks for carriage return CR and line feed LF sequences...

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WatsonWebserver contains an HTTP/1 request body size-limit bypass when processing requests using Transfer-Encoding: chunked. The framework's configured Settings.IO.MaxRequestBodySize limit is enforced when a request declares its body size using Content-Length. However, requests using chunked...

CVE-2026-80050

ContiNew Admin fails to apply file-upload permission checks or file-type allowlist validation to multipart upload endpoints, allowing authenticated users to store files with arbitrary extensions. Attackers can initialize chunked uploads, send file parts, and complete uploads to leave arbitrary...

CVE-2026-15310 zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits

When decompressing crafted zip files using the bzip/LZMA/Zstandard compressions, Python could use an attacker-controlled size to pre-allocate memory, possibly resulting in memory exhaustion...

SUSE-SU-2026:23317-1 Security update for 7zip

This update for 7zip fixes the following issue: Update to 26.02. - CVE-2026-14266: heap buffer overflow when processing XZ chunked data can lead to remote code execution bsc1273065...

OPENSUSE-SU-2026:21641-1 Security update for 7zip

This update for 7zip fixes the following issue: Update to 26.02. - CVE-2026-14266: heap buffer overflow when processing XZ chunked data can lead to remote code execution bsc1273065...

The vulnerability of the http_cb() function in the Mongoose library allows a hacker to gain unauthorized access to protected information or execute arbitrary code.

The vulnerability of the httpcb function in the Mongoose library is related to deficiencies in handling HTTP requests when processing the Transfer-Encoding parameter: chunked. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information or execute...

GHSA-FX4F-MHW4-QM7J vibeio-http has a DoS vulnerability in HTTP/1.x chunked encoding parser triggered by maliciously crafted chunk lengths

When using the affected versions of the vibeio-http crate, an attacker could craft a malicious HTTP/1.x request with a large chunk length between usize::MAX - 1 and usize::MAX inclusive and send it, causing the server to crash integer overflow panic in debug builds, splitto out of bounds panic in...

vibeio-http has a DoS vulnerability in HTTP/1.x chunked encoding parser triggered by maliciously crafted chunk lengths

When using the affected versions of the vibeio-http crate, an attacker could craft a malicious HTTP/1.x request with a large chunk length between usize::MAX - 1 and usize::MAX inclusive and send it, causing the server to crash integer overflow panic in debug builds, splitto out of bounds panic in...

JLSEC-2026-1380

Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by sending a request with Transfer-Encoding: chunked and conflicting framing. The httpcb function in src/http.c tests hm.proto.len with an...

PT-2026-85158

Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by sending a request with Transfer-Encoding: chunked and conflicting framing. The http cb function in src/http.c tests hm.proto.len with an...

SUSE CVE-2026-63379

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent processes chunked HTTP trailers in http.c through evhttpreadtrailer and merges them into request headers. The fix introduces evhttpparseheadersimpl and a temporary trailer header list. An unauthenticated remote...

Linux Distros Unpatched Vulnerability : CVE-2026-73257

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2026-73256

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by...

Linux Distros Unpatched Vulnerability : CVE-2026-63379

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent processes chunked HTTP trailers in http.c through evhttpreadtrailer and...

CVE-2026-73256

Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by sending a request with Transfer-Encoding: chunked and conflicting framing. The httpcb function in src/http.c tests hm.proto.len with an...