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Mageia 9: python-urllib3 Important Security Fixes MGASA-2026-0011

mageia
Calendar Grey January 17, 2026
Dist Mageia Esm H88
Updated python-urllib3 packages in Mageia address important security issues related to decompression attacks and HTTP redirects.
MGASA-2026-0011 - Updated python-urllib3 packages fix security vulnerabilities

Summary

Description: urllib3 allows an unbounded number of links in the decompression chain. (CVE-2025-66418) urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API). (CVE-2026-21441)

References

- https://bugs.mageia.org/show_bug.cgi?id=34809

- https://www.openwall.com/lists/oss-security/2025/12/05/4

- https://ubuntu.com/security/notices/USN-7955-1

- https://www.cve.org/CVERecord?id=CVE-2025-66418

- https://www.cve.org/CVERecord?id=CVE-2026-21441

Topics%20covered

Topics Covered

security advisory security issue important Mageia python-urllib3 decompression bomb

Resolution

SRPMS

- 9/core/python-urllib3-1.26.20-1.2.mga9

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 17 Jan 2026
URL: https://advisories.mageia.org/MGASA-2026-0011.html
Type: security
CVE: CVE-2025-66418, CVE-2026-21441

Topics%20covered

Topics Covered

security advisory security issue important Mageia python-urllib3 decompression bomb

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