wid-sec-w-2026-0607
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Published 2026-03-04
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View on BSI CERT-Bund ↗
CPython: Vulnerability allows Umgehen from Sicherheitsvorkehrungen
CVSS 5.7
MEDIUM
Risk Summary
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.
CVEs (1)
Affected Vendors
Fedora
Microsoft
Open Source
SUSE
Affected Products (3)
Microsoft
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Azure Linux
azl3
Open Source
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Python
CPython <3.15.0
Open Source
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Python
CPython 3.15.0
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