CVE-2026-89136 (GCVE-0-2026-89136)

Vulnerability from cvelistv5 – Published: 2026-09-27 09:12 – Updated: 2026-09-27 09:13
VLAI
Title
Client accepts unsolicited RawPublicKey server certificate type
Summary
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.
Severity
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
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version CPE status
wolfSSL wolfSSL Affected: 5.6.0 , ≤ 5.9.2 (semver)
guessed Create a notification for this product.
Date Public
2026-09-26 12:00
Credits
Christos Papakonstantinou (Cantina Security)
Show details on NVD website
To clipboard 

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