Cleartext Transmission of Sensitive Information Affecting libcurl package, versions [7.77.0,7.86.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (21st 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-LIBCURL-10076451
  • published8 May 2025
  • disclosed26 Oct 2022
  • creditHiroki Kurosawa

Introduced: 26 Oct 2022

CVE-2022-42916  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

Upgrade libcurl to version 7.86.0 or higher.

Overview

Affected versions of this package are vulnerable to Cleartext Transmission of Sensitive Information due to bypassing curl's HSTS check if the hostname in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion.

CVSS Base Scores

version 3.1