CVE-2021-3426

Updated: 2025-12-28 04:13:17.271673

Description:

There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x LOW 2.7
CVSS Version 3.x MEDIUM 5.7

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

EL 8 python 3.6 5.7 MEDIUM Already Fixed 2025-05-24 02:18:19
EL 9 python 3.6 5.7 MEDIUM Already Fixed 2025-05-24 02:18:19
EL 9 python 2.7 5.7 MEDIUM Not Vulnerable 2025-07-24 01:51:41
Ubuntu 16.04 python 2.7 5.7 MEDIUM Not Vulnerable 2025-09-09 19:32:59
Ubuntu 16.04 python 3.6 5.7 MEDIUM Already Fixed 2025-08-16 01:15:58
Ubuntu 18.04 python 2.7 5.7 MEDIUM Not Vulnerable 2025-09-09 19:32:58
Ubuntu 18.04 python 3.6 5.7 MEDIUM Already Fixed 2025-08-16 01:15:58
Ubuntu 20.04 python 2.7 5.7 MEDIUM Not Vulnerable 2025-09-09 19:32:58
Ubuntu 20.04 python 3.6 5.7 MEDIUM Already Fixed 2025-08-16 01:15:58
Ubuntu 22.04 python 2.7 5.7 MEDIUM Not Vulnerable 2025-09-09 19:32:57
Total: 33