CVE-2026-7531 — Use-after-free in PQC hybrid key-share handling

CVE-2026-7531

Use-after-free in PQC hybrid key-share handling PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
wolfSSL / wolfSSL	affected 5.8.0 through 5.9.1

CWE

CWE-416

References

https://github.com/wolfSSL/wolfssl/pull/10327
https://www.wolfssl.com/docs/security-vulnerabilities/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.