CVE-2026-80230

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    CVE-2026-80230

    Published: 6 Sept 2026Last Modified: 17 Sept 2026

    Summary: OpenSSL pinning bypass

    Details: 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.

    References: https://curl.se/docs/CVE-2026-80230.html, https://curl.se/docs/CVE-2026-80230.json, https://hackerone.com/reports/3969300, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80230.json, https://nvd.nist.gov/vuln/detail/CVE-2026-80230, https://github.com/curl/curl.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 2c000d91f3c423cee0af44e8afc79b9d25a9e714
    Fixed -01346829096c61b372692f6dc43ffa778c6caccd

    Affected versions

    7.45.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-80230 | CVE-DB