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 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

Important: Red Hat Security Advisory: python3.12-urllib3 security update

An update for python3.12-urllib3 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

urllib3: urllib3 Streaming API improperly handles highly compressed data

A decompression handling flaw has been discovered in urllib3. When streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP Content-Encoding header e.g., gzip, deflate, br, or zstd. The library must read compressed data from the network and decompress it...

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 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

urllib3: urllib3 Streaming API improperly handles highly compressed data

A decompression handling flaw has been discovered in urllib3. When streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP Content-Encoding header e.g., gzip, deflate, br, or zstd. The library must read compressed data from the network and decompress it...

Important: Red Hat Security Advisory: python-urllib3 security update

An update for python-urllib3 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

Important: Red Hat Security Advisory: python-urllib3 security update

An update for python-urllib3 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabilit...

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 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

Important: fence-agents security update

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fixes: urllib3: urllib3: Unbounded decompression chain leads to resource...

python-urllib3 security update

1.26.5-6.1 - Security fix for CVE-2025-66471 - Security fix for CVE-2025-66418 - Security fix for CVE-2026-21441 Resolves: RHEL-139401...

python3.12-urllib3 security update

1.26.19-2 - Security fix for CVE-2025-66471 - Security fix for CVE-2025-66418 - Security fix for CVE-2026-21441 Resolves: RHEL-139409...

python-urllib3 security update

1.24.2-9 - Security fix for CVE-2025-66471 - Security fix for CVE-2025-66418 - Security fix for CVE-2026-21441 Resolves: RHEL-139410...

python3.11-urllib3 security update

1.26.12-5.1 - Security fix for CVE-2025-66471 - Security fix for CVE-2025-66418 - Security fix for CVE-2026-21441 Resolves: RHEL-140565, RHEL-139404...

Oracle Linux 9 : python3.12-urllib3 (ELSA-2026-1088)

The remote Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-1088 advisory. - Security fix for CVE-2025-66471 - Security fix for CVE-2025-66418 Tenable has extracted the preceding description block directly from the Oracle Linu...

Oracle Linux 9 : python3.11-urllib3 (ELSA-2026-1089)

The remote Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-1089 advisory. - Security fix for CVE-2025-66471 - Security fix for CVE-2025-66418 Tenable has extracted the preceding description block directly from the Oracle Linu...

openSUSE Security Advisory (SUSE-SU-2026:0255-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

ALSA-2026:1224 Important: python3.11-urllib3 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...