CVE-2026-33583
High · 8.7CVSS
8.7
EPSS
0.3%
Published
May 13, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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