CVE-2026-5271

Possible to hijack modules in current working directory

Published Apr 1, 2026 CVSS 4.0 · 5.6 Medium EPSS < 1% KEV · Not listed
Description
pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory. As a result, if a user executes a pymanager-generated command (e.g., pip, pytest)
from an attacker-controlled directory, a malicious module in that
directory can be imported and executed instead of the intended package.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:python:pymanager:26.0:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Python
Python pymanager
Vendors & Products Python
Python pymanager
Type Values Removed Values Added
Description pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory. As a result, if a user executes a pymanager-generated command (e.g., pip, pytest) from an attacker-controlled directory, a malicious module in that directory can be imported and executed instead of the intended package.
Title Possible to hijack modules in current working directory
Weaknesses CWE-427
References
Metrics cvssV4_0

{'score': 5.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PSF
Published
Updated
Apr 1, 2026, 11:12 PM
Reserved
Mar 31, 2026, 8:02 PM
Status
Analyzed
Published
Apr 1, 2026, 2:16 PM
Modified
Oct 26, 2026, 9:10 PM