CVE-2026-7790 Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS

Uncontrolled Resource Consumption vulnerability in ninenines cowlib cowhttpte module allows Excessive Allocation. The chunked transfer-encoding parser in cowhttpte accepts an unbounded number of hex digits in the chunk-size field. Each digit causes a bignum multiplication Len 16 + digit, so parsi...

CVE-2026-7790 Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS

Uncontrolled Resource Consumption vulnerability in ninenines cowlib cowhttpte module allows Excessive Allocation. The chunked transfer-encoding parser in cowhttpte accepts an unbounded number of hex digits in the chunk-size field. Each digit causes a bignum multiplication Len 16 + digit, so parsi...

PT-2026-39731

Name of the Vulnerable Software and Affected Versions cowlib versions 0.6.0 through 2.16.0 Description An uncontrolled resource consumption issue in the cow http te module allows for excessive allocation. The chunked transfer-encoding parser accepts an unbounded number of hex digits in the...

CLSA-2026-1778055087 php: Fix of 3 CVEs

CVE-2018-5711: Fix infinite loop in gdImageCreateFromGifCtx libgd when reading crafted GIF - CVE-2018-17082: Fix XSS via Transfer-Encoding: chunked in apache2 SAPI - CVE-2018-10545: Do not set PRSETDUMPABLE by default in php-fpm child...

php: Fix of 3 CVEs

CVE-2018-5711: Fix infinite loop in gdImageCreateFromGifCtx libgd when reading crafted GIF - CVE-2018-17082: Fix XSS via Transfer-Encoding: chunked in apache2 SAPI - CVE-2018-10545: Do not set PRSETDUMPABLE by default in php-fpm child...

Netty HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization

NETTY HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization | Field | Value | |-----------|-------| | Library | io.netty:netty-codec-http | | Component | codec-http — HttpObjectDecoder | | Severity | HIGH | | Affects | HEAD, commit 4f3533ae confirmed | --- Summary HttpObjectDecoder strips a...

HTTP Request Smuggling

Overview io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients. Affected versions of this package are vulnerable to HTTP Request Smuggling via the getChunkSize function. An attacker can inject unauthorized HT...

io.netty/netty-codec-http: Netty: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values

A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/1.1 chunked transfer encoding extension values. Due to incorrect parsing of quoted strings, this flaw enables request smuggling attacks, potentially allowing an attacker to bypass...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in netty-codec-http-4.1.129.Final.jar

Summary IBM Watson Discovery Cartridge affected by vulnerability in netty-codec-http-4.1.129.Final.jar Vulnerability Details CVEID:CVE-2026-33870 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrect...

io.netty/netty-codec-http: Netty: Request smuggling via incorrect parsing of HTTP/1.1 chunked transfer encoding extension values

A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/1.1 chunked transfer encoding extension values. Due to incorrect parsing of quoted strings, this flaw enables request smuggling attacks, potentially allowing an attacker to bypass...

UBUNTU-CVE-2026-31842

Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive comparison of the Transfer-Encoding header in src/reqs.c. The ischunkedtransfer function uses strcmp to compare the header value against "chunked", even though RFC 7230 specifies that...

CVE-2026-31842

Tinyproxy 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive Transfer-Encoding check in is_chunked_transfer() (strcmp against "chunked"). RFC 7230 requires case-insensitive transfer-coding names. An unauthenticated attacker sending Transfer-Encoding: Chunked ca...

PT-2026-30811

Name of the Vulnerable Software and Affected Versions Tinyproxy versions 1.0 through 1.11.3 Description An issue exists in the way the Transfer-Encoding header is parsed in src/reqs.c. The is chunked transfer function uses strcmp to compare the header value against "chunked", failing to account f...

EUVD-2026-18388

Rack's multipart parsing without Content-Length header allows unbounded chunked file uploads...

Rack's multipart parsing without Content-Length header allows unbounded chunked file uploads

Summary Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENTLENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size...

CVE-2026-3945

A flaw was found in tinyproxy. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the HTTP chunked transfer encoding parser. By sending a crafted HTTP request with a specially formed chunk size, the attacker can cause the proxy to miscalculate the size of incoming...

UBUNTU-CVE-2026-3945

An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service DoS. The issue occurs because chunk size values are parsed using strtol without properly validating...

CVE-2026-3945 tinyproxy Integer Overflow in HTTP Chunked Transfer-Encoding Parser Leading to Denial of Service

An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service DoS. The issue occurs because chunk size values are parsed using strtol without properly validating...

CVE-2026-3945

An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service DoS. The issue occurs because chunk size values are parsed using strtol without properly validating...

CVE-2026-3945

An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service DoS. The issue occurs because chunk size values are parsed using strtol without properly validating...