HIGH 8.1 Microsoft
CVE-2026-6100
Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure
Microsoft Security Update 2026-Apr: Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure
Affected Products
- azl3 python3 3.12.9-10 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6100
- https://nvd.nist.gov/vuln/detail/CVE-2026-6100
This high severity vulnerability with a CVSS score of 8.1 was published on 2026-04-14 via Microsoft. Affected: azl3 python3 3.12.9-10 on Azure Linux 3.0.
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