CVE-2025-14819 Affecting libcurl package, versions <0:8.3.0-1.amzn2.0.12


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-AMZN2-LIBCURL-15323945
  • published20 Feb 2026
  • disclosed8 Jan 2026

Introduced: 8 Jan 2026

CVE-2025-14819  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 libcurl to version 0:8.3.0-1.amzn2.0.12 or higher.
This issue was patched in ALAS2-2026-3173.

NVD Description

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

When doing TLS related transfers with reused easy or multi handles and altering the CURLSSLOPT_NO_PARTIALCHAIN option, libcurl could accidentally reuse a CA store cached in memory for which the partial chain option was reversed. Contrary to the user's wishes and expectations. This could make libcurl find and accept a trust chain that it otherwise would not.

CVSS Base Scores

version 3.1