Improper Certificate Validation Affecting wolfSSL/wolfssh package, versions [,5.9.2)
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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Test your applications- Snyk IDSNYK-UNMANAGED-WOLFSSLWOLFSSH-17660717
- published28 Jun 2026
- disclosed25 Jun 2026
- creditUnknown
Introduced: 25 Jun 2026
CVE-2026-11310 (opens in a new tab)How to fix?
Upgrade wolfSSL/wolfssh to version 5.9.2 or higher.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation in the wolfSSL_X509_verify_cert process when untrusted intermediate certificates are supplied by the caller and the build is configured with --enable-opensslextra and --enable-sessioncerts. An attacker can cause acceptance of an attacker-controlled certificate by presenting a certificate chain that does not reach a configured trust anchor. This is only exploitable if the application uses manual or deferred peer verification through this API with the specified build options.