UNKNOWN Microsoft
CVE-2025-66418
urllib3 allows an unbounded number of links in the decompression chain
Microsoft Security Update 2025-Dec: urllib3 allows an unbounded number of links in the decompression chain
Affected Products
- cbl2 python-urllib3 1.26.19-2 on CBL Mariner 2.0
- cbl2 python-virtualenv 20.26.6-2 on CBL Mariner 2.0
- azl3 tensorflow 2.16.1-9 on Azure Linux 3.0
- azl3 python-urllib3 2.0.7-2 on Azure Linux 3.0
- cbl2 python-urllib3 1.26.19-3 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-66418
- https://nvd.nist.gov/vuln/detail/CVE-2025-66418
This unknown severity vulnerability was published on 2025-12-09 via Microsoft. Affected: cbl2 python-urllib3 1.26.19-2 on CBL Mariner 2.0, cbl2 python-virtualenv 20.26.6-2 on CBL Mariner 2.0, azl3 tensorflow 2.16.1-9 on Azure Linux 3.0 and 2 more.
vulnfeed aggregates 8893 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.