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AZL-71846 CVE-2025-66418 affecting package python-urllib3 for versions less than 1.26.19-3

🗓️ 05 Dec 2025 16:15:51Reported by GoogleType 
osv
 osv🔗 osv.dev👁 1 Views

CVE-2025-66418: python-urllib3 below 1.26.19-3 allows unbounded decompression steps causing high CPU and memory use; fixed in 2.6.0.

Related
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM Security QRadar EDR Software
11 Feb 202616:52
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses urllib3 which is vulnerable to CVE-2025-66418 and CVE-2025-66471
6 Feb 202606:12
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component uses urllib3-2.5.0-py3-none-any.whl which is vulnerable to CVE-2025-66418, CVE-2025-66471.
30 Jan 202606:04
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Pak for Data System (CPDS 1.0) is affected by multiple vulnerabilities due to urllib3
1 Apr 202610:31
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite uses multiple third party dependencies which is vulnerable to multiple CVEs.
30 Apr 202612:13
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component uses urllib3-2.5.0-py3-none-any.whl, urllib3-2.6.1-py3-none-any.whl, urllib3-2.6.2-py3-none-any.whl which is vulnerable to CVE-2025-66418, CVE-2025-66471, CVE-2026-21441.
27 Feb 202611:41
–ibm
IBM Security Bulletins		Security Bulletin: High Resource Consumption Vulnerability in urllib3 Streaming API Due to Improper Handling of Highly Compressed Data (≤ v2.6.0) affects watsonx.data
8 Apr 202608:41
–ibm
IBM Security Bulletins		Security Bulletin: There is a vulnerability in urllib3-2.5.0-py3-none-any.whl used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2025-66418)
2 Feb 202612:03
–ibm
IBM Security Bulletins		Security Bulletin: Multiple security vulnerabilities addressed with IBM Business Automation Workflow cumulative fixes April 2026
27 May 202615:10
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Pak for Data System (CPDS 1.0) is affected by multiple vulnerabilities due to urllib3
1 Apr 202610:11
–ibm
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21 Apr 2026 04:36Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.5
CVSS 48.9
EPSS0.00021
SSVC
python urllib3unbounded decompressionhigh cpu memoryfixed 2.6.0
1