CVE-2026-80230 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 8, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://hackerone.com/reports/3969300 | CISA-ADP | ExploitMitigationThird Party Advisory |
| https://curl.se/docs/CVE-2026-80230.html | curl | PatchVendor Advisory |
| https://curl.se/docs/CVE-2026-80230.json | curl | Vendor Advisory |
| https://hackerone.com/reports/3969300 | curl | ExploitMitigationThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-295 | Improper Certificate Validation | CISA-ADP |
| CWE-295 | Improper Certificate Validation | curl |
Affected Products
| Product | Versions |
|---|---|
| haxx curl | >= 7.45.0, < 8.22.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | CVE Modified | curl |
| Sep 11, 2026 | Initial Analysis | [email protected] |
| Sep 8, 2026 | CVE Modified | CISA-ADP |
| Sep 6, 2026 | New CVE Received | curl |