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CVE-2026-44432 urllib3 is an HTTP client library for Python

Description

urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was decompressed using the official Brotli library or (2) when HTTPResponse.drain_conn() was called after the response had been read and decompressed partially (compression algorithm did not matter here). These issues could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This could result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data) on the client side. This vulnerability is fixed in 2.7.0.

Affected products and versions

Product Affected versions Fixed in
urllib3 2.6 2.6.0 → < 2.7.0 2.7.0
Red Hat Enterprise Linux AppStream (v. 10) Versions not published
Red Hat Enterprise Linux AppStream (v. 8) Versions not published
Red Hat Enterprise Linux AppStream (v. 9) Versions not published
Red Hat Enterprise Linux BaseOS (v. 10) Versions not published
Red Hat Enterprise Linux BaseOS (v. 9) Versions not published
Red Hat AI Inference Server 3.3 1782352847 earliest → < 1782352847 1782352847
Red Hat AI Inference Server 3.4 1780356914 earliest → < 1780356914 1780356914
Red Hat Ansible Automation Platform 2.7 1781102816 earliest → < 1781102816 1781102816
Show the 50 other branches
Product Affected versions Fixed in
Red Hat Discovery 2 1782756541 earliest → < 1782756541 1782756541
Red Hat Hardened Images Versions not published
Red Hat Quay 3.12 1781937357 earliest → < 1781937357 1781937357
Red Hat Quay 3.9 1781878070 earliest → < 1781878070 1781878070
Red Hat Satellite 6.18 1782739344 earliest → < 1782739344 1782739344
Red Hat Trusted Artifact Signer 1.3 1780560117 earliest → < 1780560117 1780560117
Red Hat Trusted Artifact Signer 1.4 1780914886 earliest → < 1780914886 1780914886
Migration Toolkit for Applications 8 Versions not published
OpenShift Lightspeed Versions not published
Pen Drive Powered by Red Hat Lightspeed Versions not published
Red Hat AI Inference Server Versions not published
Red Hat Ansible Automation Platform 2 Versions not published
Red Hat OpenShift AI (RHOAI) Versions not published
Red Hat OpenShift Container Platform 4 Versions not published
Red Hat Quay 3 Versions not published
Red Hat Satellite 6 Versions not published
Service Telemetry Framework 1.5 Versions not published
Exploit Intelligence Versions not published
External Secrets Operator for Red Hat OpenShift Versions not published
Migration Toolkit for Containers Versions not published
Migration Toolkit for Virtualization Versions not published
OpenShift Service Mesh 3 Versions not published
Red Hat build of Quarkus Native builder Versions not published
Red Hat Developer Hub Versions not published
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux AI (RHEL AI) 3 Versions not published
Red Hat OpenShift Virtualization 4 Versions not published
Red Hat OpenStack Platform 17.1 Versions not published
Red Hat Update Infrastructure 4 for Cloud Providers Versions not published
Red Hat Quay 3.10 1782487717 earliest → < 1782487717 1782487717
Red Hat Ansible Automation Platform 2.6 for RHEL 9 Versions not published
Red Hat Ansible Automation Platform 2.6 1783969139 earliest → < 1783969139 1783969139
Red Hat Satellite 6.19 1784558259 earliest → < 1784558259 1784558259
Red Hat OpenShift AI 3.3 1782472374 earliest → < 1782472374 1782472374
Red Hat Quay 3.16 1783955846 earliest → < 1783955846 1783955846
Red Hat Quay 3.1 1782487717 earliest → < 1782487717 1782487717
Red Hat Ansible Automation Platform 2.5 for RHEL 8 Versions not published
Red Hat Ansible Automation Platform 2.5 for RHEL 9 Versions not published
Red Hat Ansible Automation Platform 2.5 1784050598 earliest → < 1784050598 1784050598
Red Hat OpenShift AI 2.25 1783998857 earliest → < 1783998857 1783998857
Red Hat Migration Toolkit for Applications 8.2 1786481481 earliest → < 1786481481 1786481481
Red Hat Quay 3.15 1784351966 earliest → < 1784351966 1784351966
Red Hat Update Infrastructure 5 1787241260 earliest → < 1787241260 1787241260
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published

References

Timeline

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