CVE-2026-82208

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    CVE-2026-82208

    Published: 6 Sept 2026Last Modified: 17 Sept 2026

    Summary: wolfSSL CA-cache hit overrides callback

    Details: With the wolfSSL backend, when CA caching is enabled and an `CURLOPT_SSL_CTX_FUNCTION` callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectly accepted.

    References: https://curl.se/docs/CVE-2026-82208.html, https://curl.se/docs/CVE-2026-82208.json, https://hackerone.com/reports/3973090, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82208.json, https://nvd.nist.gov/vuln/detail/CVE-2026-82208, https://github.com/curl/curl.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 83bedbd730d62b83744cc26fa0433d3f6e2e4cd6
    Fixed -01346829096c61b372692f6dc43ffa778c6caccd

    Affected versions

    8.10.0
    8.10.1

    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-2026-82208 | CVE-DB