CVE-2026-2297

Medium CVSS: 5.7

The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a base class) and so does not use io.open_code() to read the .pyc files. sys.audit handlers for this audit event therefore do not fire.

Vendor

Product

CWE

CWE-668

Yayın Tarihi

2026-03-04 23:16:10

Güncelleme

2026-03-12 15:16:27

Source Identifier

cna@python.org

KEV Date Added

Kategoriler

CWE-668 MEDIUM 2026

Referanslar

https://github.com/python/cpython/commit/482d6f8bdba9da3725d272e8bb4a2d25fb6a603e https://github.com/python/cpython/commit/a51b1b512de1d56b3714b65628a2eae2b07e535e https://github.com/python/cpython/commit/e58e9802b9bec5cdbf48fc9bf1da5f4fda482e86 https://github.com/python/cpython/issues/145506 https://github.com/python/cpython/pull/145507 http://www.openwall.com/lists/oss-security/2026/03/05/6