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
- 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, azl3 python-urllib3 2.0.7-2 on Azure Linux 3.0, cbl2 python-urllib3 1.26.19-3 on CBL Mariner 2.0.
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