CVE-2026-33585 | Arqit SKA-Platform Improper Handling of Parameters Vulnerability

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: 2026-05-13 Last update: 2026-05-14 Assigner: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 Source: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-33585 is rated Low Risk (15.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.01%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-33585

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-14 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-33585

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.8 3.1 LOW
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 0.4 3.4 a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

Weakness enumeration for CVE-2026-33585

GitHub Security Advisory for CVE-2026-33585

GHSA-3878-8q4v-56w7 · Severity: low — Improper management of the idle timeout parameter in the Keycloak interface of the Arqit SKA...

Affected software / configurations for CVE-2026-33585

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-33585

cvelogic Threat Intelligence