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

Alpine Linux 3.22 python 3.6 7.4 HIGH Released CLSA-2026:1769524909 2026-01-27 16:43:33
Debian 10 python 3.6 7.4 HIGH Released CLSA-2025:1759247273 2025-10-01 01:28:04
Debian 11 python 3.6 7.4 HIGH Released CLSA-2025:1759247378 2025-10-01 01:28:03
Debian 12 python 3.9 7.4 HIGH Not Vulnerable 2025-12-05 12:36:40
Debian 12 python 3.7 7.4 HIGH Not Vulnerable 2025-11-21 15:05:12
Debian 12 python 3.6 7.4 HIGH Released CLSA-2025:1759247489 2025-10-01 01:28:02
Debian 12 python 3.8 7.4 HIGH Not Vulnerable 2025-11-21 15:05:11
Debian 13 python 3.9 7.4 HIGH Not Vulnerable 2025-12-05 12:36:40
Debian 13 python 3.6 7.4 HIGH Released CLSA-2025:1759247594 2025-10-01 01:13:03
Debian 13 python 3.8 7.4 HIGH Not Vulnerable 2025-11-21 15:05:13
Total: 20