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CVE WatchSep 6, 2026

CVE-2026-80230

When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CU

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Sep 6, 2026 · Last modified: Sep 6, 2026

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references
Related CVEs

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