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CVE-2025-14819

medium CVSS 5.3 EPSS 0.8%

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.

Versions it affects

Software versions checked with the free lookup that CVE-2025-14819 applies to, and the release that fixes it where the sources name one.

curl 8.1.2 fixed in 8.14.2

At a glance

Severity
Medium
CVSS base score
5.3 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.8% probability of exploitation in the next 30 days, higher than 54% of scored vulnerabilities
Weakness
CWE-295
Published
2026-01-08
NVD CVE.org

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