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CVE-2026-7531

CRITICAL CVSS: 9.8 Published: 2026-06-25 Modified: 2026-06-26

Description

Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory.

Affected Platforms

Wolfssl Wolfssl

Weakness Type

CWE-416

References