Vulnerability in Arqit Symmetric Key Agreement Platform

CVE-2026-33585

Improper management of the idle timeout parameter in the Keycloak interface of the Arqit SKA-Platform enables an attacker to impersonate an authenticated tenant user via an unexpired browser session. This issue affects Symmetric Key Agreement Platform: before 26.03.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.001 (2.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-33585: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-33585?
CVE-2026-33585 is a low-severity vulnerability in Arqit Symmetric Key Agreement Platform, classified under CWE-233. CVSS score: 3.8/10. Published 2026-05-13.
How severe is CVE-2026-33585?
Low severity. CVSS v3 base score is 3.8 out of 10.