CVE Vulnerabilities

CVE-2019-11236

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Published: Apr 15, 2019 | Modified: Nov 07, 2023
CVSS 3.x
6.1
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter.

Weakness

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

Affected Software

Name Vendor Start Version End Version
Urllib3 Python * 1.24.2 (including)

Potential Mitigations

References