VULNERABILITY INTELLIGENCE

CVE-2026-80230

CVSS score7.5 HIGH
EPSS probability0.37%
CISA KEVNot currently listed
Published2026-09-06
Last modified2026-09-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on connections established without a presented server certificate. Bypassing the pinning check under these disabled-verification conditions allows unauthenticated connections to succeed when they should be rejected.

Weakness classification

  • 2499f714-1537-4658-8207-48ae4bb9eae9: CWE-295
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-295

Primary references