CVE-2025-14819

medium

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.

References

https://curl.se/docs/CVE-2025-14819.json

https://curl.se/docs/CVE-2025-14819.html

http://www.openwall.com/lists/oss-security/2026/01/07/5

Details

Source: Mitre, NVD

Published: 2026-01-08

Updated: 2026-01-08

Risk Information

CVSS v2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00015