CVE-2026-89136
Client accepts unsolicited RawPublicKey server certificate type
Description
When using RPK (Raw Public Key), the client side of a TLS 1.2, 1.3 and DTLS 1.2 connection could accept an unsolicited server_cert_type=RawPublicKey which allowed a malicious or misbehaving server to bypass authentication. RPK is off by default and only enabled in --enable-rpk OR --enable-all OR --enable-distro AKA HAVE_RPK builds.
No summary for this CVE yet.
Weaknesses
Affected Products
wolfSSL
oss-projectaka wolfssh, wolfmqtt
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
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MITRE ATT&CK
2 techniques Initial Access
References
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