CVE-2021-28861

Updated: 2025-12-28 04:13:23.925255

Description:

Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states "Warning: http.server is not recommended for production. It only implements basic security checks."


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x HIGH 7.4

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

CentOS 7 ELS python3 3.6.8 7.4 HIGH Released CLSA-2023:1697739575 2023-10-19 21:09:36
CentOS 8.4 ELS python3 3.6.8 7.4 HIGH Released CLSA-2022:1663183291 2022-09-14 17:02:43
CentOS 8.4 ELS python2 2.7.18 7.4 HIGH Not Vulnerable 2023-05-18 08:51:07
CentOS 8.5 ELS python2 2.7.18 7.4 HIGH Not Vulnerable 2023-05-18 08:51:07
CentOS 8.5 ELS python3 3.6.8 7.4 HIGH Released CLSA-2022:1663184139 2022-09-14 17:02:43
CloudLinux 7 ELS python3 3.6.8 7.4 HIGH Released CLSA-2024:1727288754 2024-10-07 10:50:30
Ubuntu 16.04 ELS python3.5 3.5.2 7.4 HIGH Released CLSA-2022:1663184406 2022-09-14 17:02:43
Ubuntu 16.04 ELS python2.7 2.7.12 7.4 HIGH Not Vulnerable 2022-09-23 08:02:17
Ubuntu 18.04 ELS python3.6 3.6.9-1 7.4 HIGH Released CLSA-2023:1689259392 2023-07-13 11:08:51