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CVE-2026-3230

Improper key_share validation in TLS 1.3 HelloRetryRequest PUBLISHED

Description (CNA)

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required key_share extension, resulting in derivation of predictable traffic secrets from (EC)DHE shared secret. This issue does not affect the client's authentication of the server during TLS handshakes.

Affected (CNA)

Vendor / productVersions
wolfSSL / wolfSSLaffected 0 before 5.9.0

CWE

CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.