Improper Authentication Affecting curl package, versions [7.45.0,8.14.2)[8.15.0,8.16.1)[8.17.0,8.20.1)[8.21.0,8.22.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-CURL-20158571
- published27 Sept 2026
- disclosed6 Sept 2026
- creditUnknown
Introduced: 6 Sep 2026
CVE-2026-80230 (opens in a new tab)How to fix?
Upgrade curl to version 8.14.2, 8.16.1, 8.20.1, 8.22.0 or higher.
Overview
curl is a command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP. libcurl offers a myriad of powerful features.
Affected versions of this package are vulnerable to Improper Authentication via the CURLOPT_PINNEDPUBLICKEY option in combination with disabled peer verification settings. An attacker can establish unauthenticated connections by bypassing the expected public key pinning check when both CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST are set to 0. This is only exploitable if both peer and host verification are explicitly disabled in the configuration.