Incorrect Implementation of Authentication Algorithm Affecting libcurl-devel package, versions <0:8.3.0-1.amzn2.0.13


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.37% (29th 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-AMZN2-LIBCURLDEVEL-20244894
  • published29 Sept 2026
  • disclosed6 Sept 2026

Introduced: 6 Sep 2026

NewCVE-2026-80230  (opens in a new tab)
CWE-303  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 libcurl-devel to version 0:8.3.0-1.amzn2.0.13 or higher.
This issue was patched in ALAS2-2026-3953.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

When CURLOPT_PINNEDPUBLICKEY is configured alongside options that disable standard peer verification (CURLOPT_SSL_VERIFYPEER = 0 and CURLOPT_SSL_VERIFYHOST = 0), libcurl fails to enforce public key pinning on connections established without a presented server certificate. Bypassing the pinning check under these disabled-verification conditions allows unauthenticated connections to succeed when they should be rejected.

CVSS Base Scores

version 3.1