CVE-2025-14819: When doing TLS related transfers with reused easy or multi handles and altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally reuse a CA…

PriorityP428medium5.3CVSS 3.1

AVNACHPRNUIRSUCHINAN

EPSS

0.74%

53.1th percentile

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.

Affected

45 ranges· showing 25

Vendor	Product	Version range	Fixed in
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—
curl	curl	—	—

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

osv5.3MEDIUM

vendor_debian5.3MEDIUM

vendor_redhat5.3MEDIUM

vendor_ubuntu5.3MEDIUM

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