CVE-2025-14819

MEDIUM EPSS 47.7%
Published Jan 8, 20265mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Jan 8, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.3
Exploitability
1.6
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
47.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-295

Affected Products 1

VendorProductVersionRange
haxxcurl*≥7.87.0  –  <8.18.0

References 3

  • openwall.com http://www.openwall.com/lists/oss-security/2026/01/07/5
    Mailing ListMitigationPatchThird Party Advisory
  • curl.se https://curl.se/docs/CVE-2025-14819.html
    MitigationPatchVendor Advisory
  • curl.se https://curl.se/docs/CVE-2025-14819.json
    Vendor Advisory

Remediation

  • openwall.com http://www.openwall.com/lists/oss-security/2026/01/07/5
    Mailing ListMitigationPatchThird Party Advisory
  • curl.se https://curl.se/docs/CVE-2025-14819.html
    MitigationPatchVendor Advisory