CVE-2026-5500
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Apr 10, 2026
Vendor
unknown
Description
wolfSSL's wc_PKCS7_DecodeAuthEnvelopedData() does not properly sanitize the AES-GCM authentication tag length received and has no lower bounds check. A man-in-the-middle can therefore truncate the mac field from 16 bytes to 1 byte, reducing the tag check from 2⁻¹²⁸ to 2⁻⁸.