CVE-2026-89136
Client accepts unsolicited RawPublicKey server certificate type
- State
- Published
- Severity
- 8.3 High
- Published
- Sep 27, 2026
- Updated
- Sep 29, 2026
- Reserved
- Sep 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.3 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N | wolfSSL |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
wolfSSLwolfSSL |
|
References
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