Improper Validation of Syntactic Correctness of Input Affecting cpython package, versions [3.8.12,3.12.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.12% (32nd 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 IDSNYK-CONAN-CPYTHON-10075457
  • published8 May 2025
  • disclosed24 Apr 2023
  • creditUnknown

Introduced: 24 Apr 2023

CVE-2023-27043  (opens in a new tab)
CWE-1286  (opens in a new tab)

How to fix?

Upgrade cpython to version 3.12.2 or higher.

Overview

Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input. Attackers can send bypass e-ail address validation by inserting a special character in an address, causing it to be treated as a different (valid) address.

CVSS Base Scores

version 3.1