CVE-2026-80230 Affecting curl package, versions <7.68.0-1ubuntu2.25+esm9


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-UBUNTU2004-CURL-19499230
  • published11 Sept 2026
  • disclosed6 Sept 2026

Introduced: 6 Sep 2026

CVE-2026-80230  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 curl to version 7.68.0-1ubuntu2.25+esm9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 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