Disclosure summary
zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits
Source-reported weakness categories
CWE-400
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Aug
Open original source · Updated Oct 06, 2026
zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 python3 3.12.14-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 python3 3.12.9-14 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 python3 3.12.14-2 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Vendor guidance · product IDs 21811-17084, 21694-17084
- Vendor guidance · product IDs 21811-17084, 21694-17084
- Release Notes · build 3.12.15-1 · product IDs 21897-17084
- Vendor guidance · product IDs 21897-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-08-28T21:08:43-04:00
MODIFIED 2026-10-06T21:57:00-04:00
INGESTED 2026-10-08T12:35:08-04:00