Question 1

What is CVE-2026-7531 — CVE-2026-7531?

Accepted Answer

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.

Question 2

What is the authoritative source for CVE-2026-7531?

Accepted Answer

CVE-2026-7531 (CVE-2026-7531) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-7531CVE-2026-7531

Description

Scoring