CRLF Injection Affecting cpython package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (23rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about CRLF Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CONAN-CPYTHON-16032306
  • published15 Apr 2026
  • disclosed10 Apr 2026
  • creditUnknown

Introduced: 10 Apr 2026

CVE-2026-1502  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to CRLF Injection via improper validation of HTTP client proxy tunnel headers or host fields. An attacker can inject arbitrary HTTP headers.

CVSS Base Scores

version 4.0
version 3.1