CVEvulnerability
CVE-2026-80230
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-09-06
- Last modified
- 2026-09-15
- Assigner
- 2499f714-1537-4658-8207-48ae4bb9eae9
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-295
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.
Affected configurations
• haxx curl (>= 7.45.0 < 8.22.0)
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- https://curl.se/docs/CVE-2026-80230.html Patch, Vendor Advisory
- https://curl.se/docs/CVE-2026-80230.json Vendor Advisory
- https://hackerone.com/reports/3969300 Exploit, Mitigation, Third Party Advisory
- https://hackerone.com/reports/3969300 Exploit, Mitigation, Third Party Advisory