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CPython

CVE-2026-15310 is a low-severity vulnerability in CPython where decompressing specially crafted zip files using bzip, LZMA, or Zstandard compression methods can lead to memory exhaustion. This occurs because Python may use an attacker-controlled size to pre-allocate memory during decompression. The vulnerability affects multiple CPython versions prior to specific patch releases. No known exploits are reported in the wild, and no patch information is provided in the input data.

This vulnerability (CVE-2026-15310) in the Python Software Foundation's CPython implementation involves improper handling of decompression of zip files compressed with bzip, LZMA, or Zstandard algorithms. An attacker can craft a zip file that specifies a size used by Python to pre-allocate memory, potentially causing memory exhaustion (CWE-400). The issue affects multiple CPython versions before certain fixed releases. The CVSS 4.0 score is 2.1, indicating low severity. There is no information about available patches or vendor advisories in the provided data.

Detailed information about CVE-2026-15310: CWE-400 in Python Software Foundation CPython affecting Python Software Foundation CPython. Get real-time updates, te

CVE-2026-15310: CWE-400 in Python Software Foundation CPython - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-15310: CWE-400 in Python Software Foundation CPython

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