5.7

CVE-2026-2297

SourcelessFileLoader does not use io.open_code()

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerPython Software Foundation
≫
Produkt CPython
Default Statusunaffected
Version 0
Version < 3.13.13
Status affected
Version 3.14.0
Version < 3.14.4
Status affected
Version 3.15.0a1
Version < 3.15.0a7
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.101
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@python.org 5.7 0 0
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-668 Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

https://github.com/python/cpython/issues/145506
https://github.com/python/cpython/pull/145507
https://github.com/python/cpython/commit/482d6f8bdba9da3725d272e8bb4a2d25fb6a603e
https://github.com/python/cpython/commit/a51b1b512de1d56b3714b65628a2eae2b07e535e
https://github.com/python/cpython/commit/e58e9802b9bec5cdbf48fc9bf1da5f4fda482e86
http://www.openwall.com/lists/oss-security/2026/03/05/6
https://github.com/python/cpython/commit/69ddd9bb2cc4bd69b1565647c18659c6a789ccd9
https://github.com/python/cpython/commit/876858c9f65d9ab656c7fa639f268ce7856d89dd