JLSEC-2026-744 Heap buffer overread in `wc_PKCS7_DecodeEnvelopedData` when parsing crafted PKCS7 EnvelopedData

Heap buffer overread in wcPKCS7DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS...