CVE-2026-4901

MEDIUM 6.5CVE-2026-4901 · Published 09/04/2026 · updated 26/10/2026

In short

CVE-2026-4901 is a MEDIUM (CVSS 6.5) vulnerability affecting control system (hydrosystem.poznan).
Chance of exploitation in the next 30 days (EPSS): 0.26%, higher than 17.6% of all vulnerabilities.
Fix: update to 9.8.5 or later.

Package	Affected versions	Patched versions
control system hydrosystem.poznan	`< 9.8.5`	`9.8.5`

Description

AlanWeb SCADA saves sensitive information into a log file. Critically, user credentials are logged allowing the attacker to obtain further authorized access into the system. Combined with vulnerability CVE-2026-34184, these sensitive information could be accessed by an unauthorized user. This issue was fixed in AlanWeb SCADA version 9.8.5

References

cert.pl/posts/2026/04/CVE-2026-4901 · Vendor Advisory
control-system.pl

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