K000162694: WolfSSL vulnerabilities CVE-2026-6092, CVE-2026-6331, and CVE-2026-55964

Security Advisory Description CVE-2026-6092 When HAVEENCRYPTTHENMAC is configured, the implementation could fall back to MAC-then-Encrypt rather than enforcing Encrypt-then-MAC. CVE-2026-6331 HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid...

CVE-2026-55964 Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)

Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA. Intermediate CA certificates are required to have the keyCertSign key usage when a Key Usage extension is present, but chain-supplied temporary CAs WOLFSSLTEMPCA added while building a certificate path were previously exempt...

CVE-2026-55964 Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)

Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA. Intermediate CA certificates are required to have the keyCertSign key usage when a Key Usage extension is present, but chain-supplied temporary CAs WOLFSSLTEMPCA added while building a certificate path were previously exempt...

PT-2026-52573

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description An issue exists where chain intermediate certificates asserting CA:TRUE but lacking the keyCertSign key usage were accepted as signing CAs. This occurs because chain-supplied temporary CAs...