CVE-2025-14819

Severity CVSS v4.0:

Pending analysis

Type:

CWE-295 Improper Certificate Validation

Publication date:

08/01/2026

Last modified:

08/01/2026

Description

When doing TLS related transfers with reused easy or multi handles and<br /> altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally<br /> reuse a CA store cached in memory for which the partial chain option was<br /> reversed. Contrary to the user&#39;s wishes and expectations. This could make<br /> libcurl find and accept a trust chain that it otherwise would not.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

5.30

Severity 3.x

MEDIUM

CVE-2025-14819

Description

Impact

References to Advisories, Solutions, and Tools