CVE-2025-55315-repro

CVE-2025-55315-repro This repository contains a small ASP.NET Core console app to reproduce and exercise HTTP chunked-transfer and newline parsing behavior. More information on CVE-2025-55315. Contents Repro/Program.cs - Console app that starts a local Kestrel server and runs two TCP-based tests...

Important: python-urllib3

Issue Overview: urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.readchunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigge...

Important: python3.13-pip

Issue Overview: urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.readchunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigge...

CVE-2013-2028-Exploit

CVE-2013-2028 Exploit Vulnerability Details Vulnerable software: Nginx 1.3.9 Vulnerable function: ngxhttpparsechunked CVE-2013-2028 is an integer overflow vulnerability in Nginx's HTTP chunked transfer encoding parser. Under the conditions targeted by this laboratory environment, the vulnerabilit...

CVE-2025-55315-detection-playground

Here are some tests that can be performed against these services to observe different behavior on GET/POST routes between the patched and unpatched versions of Kestrel. GET against unpatched sends 200 and socket remains open printf 'GET / HTTP/1.1\r\nHost: localhost\r\nTransfer-Encoding:...

urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impacturllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until ...

PYSEC-2026-4177 urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

AlmaLinux 9.2 [TuxCare] Security Update: libsoup / libsoup-devel / libsoup-doc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1788856994)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1788856994 advisory. - A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the...

PT-2026-105920

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

GHSA-VXQ7-64XX-V4GW urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory

Impact urllib3's streaming API is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When decoding a chunked-transfer-encoded response, this API reads each chunk's size field by buffering until...

EUVD-2026-89017

urllib3: HTTPResponse.stream/readchunked buffers an unbounded chunk-size line into memory...

AlmaLinux 9.6 [TuxCare] Security Update: libsoup / libsoup-devel / libsoup-doc (ALMALINUX9.6:CLSA-2026:1787783675)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787783675 advisory. - A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts...

CentOS Linux 7 [TuxCare] Security Update: libsoup / libsoup-devel (CENTOS7:CLSA-2026:1787751026)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1787751026 advisory. - A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts inpu...

Rocky Linux 9.6 [TuxCare] Security Update: libsoup / libsoup-devel / libsoup-doc (ALMALINUX9.6:CLSA-2026:1787783675)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787783675 advisory. - A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accept...

CVE-2026-73256

A flaw was found in Mongoose. A remote, unauthenticated attacker can achieve unauthorized access or bypass security controls through HTTP request smuggling. Due to an error in protocol version validation, Mongoose fails to identify HTTP/1.0 requests and incorrectly processes chunked transfer...

UBUNTU-CVE-2026-97689

urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.readchunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a...

Allocation of Resources Without Limits or Throttling

Overview urllib3 is a HTTP library with thread-safe connection pooling, file post, and more. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via HTTPResponse.updatechunklength in response.py, where the chunk-size line in a chunked...

undertow-core: OOM via missing limits in chunked trailer in EAP's Undertow

A flaw was found in EAP's undertow http/1.1 chunked-transfer decoder. missing limits on size and count would allow an attacker to use an unauthenticated connection to drive the JVM to an OutOfMemory error, stopping all deployments on the listener, and achieving Denial of Service...

undertow-core: Undertow:HTTP request smuggling via oversized chunk-size bit overlap

A flaw was found in the ChunkReader component of the Undertow HTTP server, which is used by WildFly and JBoss EAP to handle chunked transfer encoding. The issue occurs because the parser uses a single internal variable to store both the remaining chunk size and state flags. By sending a specially...