CVE-2026-6357: pip self-update functionality can import newly installed modules after wheel installation

Overview

Severity

N/A

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-30

Last Updated

2026-06-03

EPSS Score

0.14% (percentile: 3.6%)

Affected Products (6)

Other

• 21381-17084
• 21388-17084

Open Source Software

• azl3 python-pip 24.2-6 on Azure Linux 3.0
• azl3 python-virtualenv 20.36.1-2 on Azure Linux 3.0
• cbl2 python-virtualenv 20.26.6-3 on CBL Mariner 2.0
• cbl2 python3 3.9.19-19 on CBL Mariner 2.0

Revision History

• 2026-04-30: Information published.
• 2026-05-01: Information published.
• 2026-05-19: Information published.
• 2026-05-22: Information published.
• 2026-06-03: Information published.