UBUNTU-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...

UBUNTU-CVE-2026-93304

A DTLS 1.2 client can accept a ChangeCipherSpec message before it has sent its ClientKeyExchange. No master secret has been derived at that point, so the client installs read keys derived from a known deterministic key and checks the server's Finished against that same key. An out-of-order...

UBUNTU-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

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-2026-15442

In all builds that make use of DTLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSLread which is sometimes caused by a small user buffer passed in, then calle...

UBUNTU-CVE-2026-94417

When an application enables both OCSP and CRL revocation checking on one WOLFSSLCTX or certificate manager, wolfSSL skips the CRL check for any peer certificate that carries no Authority Information Access OCSP URL, and accepts a certificate the loaded CRL lists as revoked. The soft-fail policy f...

CVE-2026-15442 Heap use-after-free on read during bidirectional (D)TLS shutdown

In all builds that make use of DTLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSLread which is sometimes caused by a small user buffer passed in, then calle...

EUVD-2026-87924

In all builds that make use of DTLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSLread which is sometimes caused by a small user buffer passed in, then calle...

CVE-2026-15442

The wolfSSL library is vulnerable to a heap-use-after-free condition in all builds utilizing (D)TLS , including default configurations. The issue arises during the TLS shutdown process when a series of conditional states are triggered. Specifically, if an application receives a partial wolfSSL_re...

CVE-2026-15442 Heap use-after-free on read during bidirectional (D)TLS shutdown

In all builds that make use of DTLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSLread which is sometimes caused by a small user buffer passed in, then calle...

CVE-2026-15442 Heap use-after-free on read during bidirectional (D)TLS shutdown

In all builds that make use of DTLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSLread which is sometimes caused by a small user buffer passed in, then calle...

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

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...

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 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...

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...