CVE-2026-33583 Arqit SKA-Platform Vulnerable to Key Exposure
Unauthenticated HTTP GET requests expose QKEY and internal system keys, allowing attackers to bypass security mechanisms in the Arqit Symmetric Key Agreement Platform.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33583?
CVE-2026-33583 is a high-severity vulnerability in Arqit Symmetric Key Agreement Platform, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-749
Which versions are affected by CVE-2026-33583?
How do I fix CVE-2026-33583?
No fix has been published for CVE-2026-33583 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-33583 being exploited?
There is no known exploitation of CVE-2026-33583 in the wild and no public exploit code.
Sources
Also known as GHSA-p8mh-jv2c-p65g.