CVE-2025-22874

Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny unintentionally disabledpolicy validation. This only affected certificate chains which contain policy graphs, which are rather uncommon...

CVE-2022-21657 X.509 Extended Key Usage and Trust Purposes bypass in Envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions Envoy does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, to only those certificates that contain the necessary extendedKeyUsage...

GO-2021-0223 Certificate verification error on Windows in crypto/x509

On Windows, if VerifyOptions.Roots is nil, Certificate.Verify does not check the EKU requirements specified in VerifyOptions.KeyUsages. This may allow a certificate to be used for an unintended purpose...

GO-2021-0140

X509 Certificate verification does not validate KeyUsages EKU requirements on Windows if VerifyOptions.Roots is nil...

PT-2022-28293

Name of the Vulnerable Software and Affected Versions Windows affected versions not specified Description The issue concerns X509 Certificate verification, which does not validate KeyUsages EKU requirements on Windows when VerifyOptions.Roots is nil. Recommendations At the moment, there is no...

Design/Logic Flaw

In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a check on the VerifyOptions.KeyUsages EKU requirements if VerifyOptions.Roots equals nil and the installation is on Windows. Thus, X.509 certificate verification is incomplete...