CVE-2020-26116

Updated: 2025-08-20 00:05:55.370428

Description:

http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x MEDIUM 6.4
CVSS Version 3.x HIGH 7.2

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

Debian 13 python 2.7 7.2 HIGH Released CLSA-2025:1760370001 2025-10-13 16:30:33
Debian 13 python 3.8 7.2 HIGH Not Vulnerable 2025-11-14 16:30:24
Debian 13 python 3.7 7.2 HIGH Not Vulnerable 2025-11-14 16:30:24
EL 10 python 2.7 7.2 HIGH Released CLSA-2025:1760370074 2025-10-13 16:30:35
EL 10 python 3.6 7.2 HIGH Already Fixed 2025-10-23 12:33:59
EL 7 python 2.7 7.2 HIGH Released CLSA-2025:1760369642 2025-10-13 16:30:26
EL 7 python 3.6 7.2 HIGH Already Fixed 2025-05-24 02:18:32
EL 8 python 2.7 7.2 HIGH Released CLSA-2025:1760369553 2025-10-13 16:30:24
EL 8 python 3.6 7.2 HIGH Already Fixed 2025-05-24 02:18:31
EL 9 python 3.6 7.2 HIGH Already Fixed 2025-05-24 02:18:29
Total: 31