CVE-2026-80230
highWhen `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CURLOPT_SSL_VERIFYHOS…
Vendor / product: Haxx — curl
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.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-09-06 18:17
Modified: 2026-09-15 07:16
NVD status: Modified
Last synced 1 day ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
haxx / curl ≥7.45.0 <8.22.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://curl.se/docs/CVE-2026-80230.html
Vendor advisory: https://curl.se/docs/CVE-2026-80230.json
Patch / mitigation: https://curl.se/docs/CVE-2026-80230.html
Patch / mitigation: https://hackerone.com/reports/3969300
Patch / mitigation: https://hackerone.com/reports/3969300
References
- https://curl.se/docs/CVE-2026-80230.html 2499f714-1537-4658-8207-48ae4bb9eae9
- https://curl.se/docs/CVE-2026-80230.json 2499f714-1537-4658-8207-48ae4bb9eae9
- https://hackerone.com/reports/3969300 2499f714-1537-4658-8207-48ae4bb9eae9
- https://hackerone.com/reports/3969300 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗