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CVE-2026-2645

Acceptance of CertificateVerify Message before ClientKeyExchange in TLS 1.2 PUBLISHED

Description (CNA)

In wolfSSL 5.8.2 and earlier, a logic flaw existed in the TLS 1.2 server state machine implementation. The server could incorrectly accept the CertificateVerify message before the ClientKeyExchange message had been received. This issue affects wolfSSL before 5.8.4 (wolfSSL 5.8.2 and earlier is vulnerable, 5.8.4 is not vulnerable). In 5.8.4 wolfSSL would detect the issue later in the handshake. 5.9.0 was further hardened to catch the issue earlier in the handshake.

Affected (CNA)

Vendor / productVersions
wolfSSL / wolfSSLaffected 0 before 5.8.4

CWE

CWE-358

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.