CVE-2025-14819

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published1/8/2026

Last Modified1/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

haxx:curl

Weaknesses (CWE)

CWE-295

References

https://curl.se/docs/CVE-2025-14819.html(2499f714-1537-4658-8207-48ae4bb9eae9)

https://curl.se/docs/CVE-2025-14819.json(2499f714-1537-4658-8207-48ae4bb9eae9)

http://www.openwall.com/lists/oss-security/2026/01/07/5(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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