CVE-2026-89136

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description When using Raw Public Key (RPK), a client side connection using TLS 1.2, 1.3, or DTLS 1.2 may accept an unsolicited server cert type=RawPublicKey. This behavior allows a malicious or misbehaving server to bypass authentication. This issue occurs in builds where RPK is enabled via --enable-rpk, --enable-all, or --enable-distro (HAVE RPK).

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.