CVE-2025-14819 – OpenSSL partial chain store policy bypass

CVE ID : CVE-2025-14819

Published : Jan. 8, 2026, 10:07 a.m. | 20 minutes ago

Description : 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.

Severity: 0.0 | NA

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