Auth bypass in Control System Alanweb Scada
CVE-2026-34184
AlanWeb SCADA does not enforce authorization for some directories. This allows an unauthorized attacker to read all files in these directories and even execute some of them. Critically the attacker could run PHP scripts directly on the connected database. This issue was fixed in AlanWeb SCADA version 9.8.5
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Control System Alanweb Scada — versions 0
- Hydrosystem Control System — versions 0
- Hydrosystem.poznan Control System
Weakness classification (CWE)
References
- cert.pl/posts/2026/04/CVE-2026-4901/ (Vendor Advisory, third-party-advisory)
- www.hydrosystem.poznan.pl/ (Product, product)
- control-system.pl/ (product)
Frequently asked questions
- What is CVE-2026-34184?
- CVE-2026-34184 is a critical-severity vulnerability in Control System Alanweb Scada, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-04-09.
- How severe is CVE-2026-34184?
- Critical severity. CVSS v3 base score is 9.1 out of 10.