🛡️ ALSA-2026:1089 — python3.11-urllib3

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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 Fix(es):

  • urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion (CVE-2025-66418)
  • urllib3: urllib3 Streaming API improperly handles highly compressed data (CVE-2025-66471)
  • urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API) (CVE-2026-21441)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected software

ALSA-2026:1089 is recorded against 1 package.

  • python3.11-urllib3 (fixed in 1.26.12-5.el9_7.1)

Timeline and source

Published on 26 January 2026 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

access.redhat.com (Advisory)
access.redhat.com (Report)
access.redhat.com (Report)
access.redhat.com (Report)
bugzilla.redhat.com (Report)
bugzilla.redhat.com (Report)
bugzilla.redhat.com (Report)
errata.almalinux.org (Advisory)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-01-26
Updated 2026-08-12
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
python3.11-urllib3 — 1.26.12-5.el9_7.1

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.