CVE-2026-33583
HIGH
NVD
CVSS Score
8.7
Severity
HIGH
Published
May 13, 2026
Vendor
unknown
Description
Exposure of the QKEY (used as input into the ‘OTA-Quantum’ device registration process) and internal system keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform. This issue affects Symmetric Key Agreement Platform: before 26.03.