Astra Linux – Vulnerability in python-urllib3

urllib3 is a user-friendly HTTP client library for Python. Starting from version 1.24 and before 2.6.0, the number of links in the decompression chain was unbounded, allowing a malicious server to insert virtually an unlimited number of compression steps. This led to high CPU usage and massive...

EUVD-2026-37014

Improper Handling of Highly Compressed Data Data Amplification vulnerability in elixir-grpc grpc GRPC.Compressor.Gzip, GRPC.Message modules allows a denial of service via a gzip decompression bomb. This vulnerability is associated with program files lib/grpc/compressor/gzip.ex, lib/grpc/message.e...

Unfurl 安全漏洞

Unfurl is a URL data extraction and visualization analysis tool developed by Ryan Benson. Versions of Unfurl prior to version 2026.04 contained security vulnerabilities. These vulnerabilities stemmed from an unlimited zlib decompression issue in the parsecompressed.py script. This could allow...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

CVE-2026-22036

Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This...

CVE-2025-66418

urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory...

CVE-2025-66418 urllib3 allows an unbounded number of links in the decompression chain

urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory...

CVE-2025-66418

urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory...

ROS-20250923-22

A vulnerability in the curl program is related to a state issue with parallel processing of multiple transactions, resulting in ignoring HSTS support. Exploitation of the vulnerability could allow an attacker acting remotely to execute a MitM attack Vulnerability in the implementation of HTTP...

PT-2025-49260

Name of the Vulnerable Software and Affected Versions urllib3 versions 1.24 through 2.5.9 Description urllib3 is a user-friendly HTTP client library for Python. In versions starting from 1.24 and prior to 2.6.0, the decompression chain had an unbounded number of links. This allowed a malicious...

The vulnerability lies in the implementation of “chain” compression mechanisms for the HTTP utility tool cURL, which allows a attacker to trigger a service failure.

The vulnerability of the “chain” compression mechanism implemented in the CURL command-line utility relates to the ability to perform an infinite number of decompression steps of server HTTP responses, which can lead to uncontrolled memory consumption. Exploiting this vulnerability allows a remot...