CRITICAL9.8
PYSEC-2026-501
pyminizip affected by zlib's integer overflow/heap based buffer overflow vulnerability due to vulnerable dependency
Details
MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product.
pyminizip uses version 1.2.11 of zlib's code.
Are you affected?
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Affected packages
PyPI/pyminizip
Introduced in:
0No fixed version published yet for pyminizip (pip). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-45853[ADVISORY]
- https://github.com/madler/zlib/pull/843[WEB]
- https://github.com/madler/zlib/commit/73331a6a0481067628f065ffe87bb1d8f787d10c[WEB]
- https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c548813356[WEB]
- https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800ddfb1d8b61[WEB]
- https://github.com/madler/zlib/blob/ac8f12c97d1afd9bafa9c710f827d40a407d3266/contrib/README.contrib#L1-L4[WEB]
- https://github.com/smihica/pyminizip[PACKAGE]
- https://github.com/smihica/pyminizip/blob/master/zlib-1.2.11/contrib/minizip/zip.c[WEB]
- https://lists.debian.org/debian-lts-announce/2023/11/msg00026.html[WEB]
- https://pypi.org/project/pyminizip/#history[WEB]
- https://security.gentoo.org/glsa/202401-18[WEB]
- https://security.netapp.com/advisory/ntap-20231130-0009[WEB]
- https://www.winimage.com/zLibDll/minizip.html[WEB]
- http://www.openwall.com/lists/oss-security/2023/10/20/9[WEB]
- http://www.openwall.com/lists/oss-security/2024/01/24/10[WEB]
- https://pypi.org/project/pyminizip[PACKAGE]
- https://github.com/advisories/GHSA-mq29-j5xf-cjwr[ADVISORY]