CVE-2026-8643

Public on 2026-05-28
Modified on 2026-05-28
Description
A flaw was found in pip, the package installer for Python. A remote attacker can exploit this vulnerability by tricking a victim into installing a malicious Python wheel. This wheel contains specially crafted entry-point names that use directory traversal or absolute paths. This allows pip to write generated script wrappers outside the intended installation directory, leading to arbitrary file overwrite. This can severely impact system integrity and availability, and in certain scenarios, may lead to arbitrary code execution.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core python-pip 2026-06-22 ALAS2-2026-3358 Fixed
Amazon Linux 2023 python-pip 2026-06-22 ALAS2023-2026-1837 Fixed
Amazon Linux 2023 python3.11-pip 2026-06-22 ALAS2023-2026-1839 Fixed
Amazon Linux 2023 python3.12-pip 2026-06-22 ALAS2023-2026-1840 Fixed
Amazon Linux 2023 python3.13-pip 2026-06-22 ALAS2023-2026-1841 Fixed
Amazon Linux 2023 python3.14-pip 2026-06-22 ALAS2023-2026-1838 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N