CVE-2025-14819 — OpenSSL partial chain store policy bypass
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 me…
Published: 2026-01-08 · CVSS: 5.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7