CVE-2026-89102

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

CVE-2026-89102

WolfSSL versions 5.7.2 through 5.9.2 contain a client-side implementation flaw in RFC 6961 regarding multiple OCSP response stapling. When the HAVE_CERTIFICATE_STATUS_REQUEST_V2 feature is enabled and the client calls wolfSSL_UseOCSPStaplingV2 with WOLFSSL_CSR2_OCSP_MULTI , the client fails to ve...

EUVD-2026-87923

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

CVE-2026-89102 OCSP stapling v2 multi accepts non-CA chain certificates as issuers

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

CVE-2026-89102

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

CVE-2026-89102 OCSP stapling v2 multi accepts non-CA chain certificates as issuers

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

CVE-2026-89102

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

CVE-2026-89133 NameConstraints not enforced across unconstrained intermediate CA

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

CVE-2026-89133

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

EUVD-2026-87922

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

CVE-2026-89133 NameConstraints not enforced across unconstrained intermediate CA

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

CVE-2026-89133

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

CVE-2026-89133

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

CVE-2026-89133

wolfSSL versions 5.9.2 and earlier are vulnerable to a flaw in the X.509 certificate validation logic . A chain-walking state-machine bug causes the library to fail to enforce NameConstraints extensions when an unconstrained CA tier exists between a name-constrained intermediate CA and the leaf c...

CVE-2026-89133 NameConstraints not enforced across unconstrained intermediate CA

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...

CVE-2026-89134 Subject CN name-constraint check bypassed when non-DNS SAN present

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

EUVD-2026-87913

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134 Subject CN name-constraint check bypassed when non-DNS SAN present

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134 Subject CN name-constraint check bypassed when non-DNS SAN present

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...