CVE-2026-5131 MEDIUM

CVE-2026-5131: Server-Side Request Forgery in GREENmod

Vendor Nomios Poland
Product GREENmod
Weakness CWE-918 · SSRF
Published April 17, 2026
Last update April 17, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

What the vulnerability does

01Description

GREENmod uses named pipes for communication between plugins, the web portal, and the system service, but the access control lists for these pipes are configured incorrectly. This allows an attacker to communicate with the stream and upload any XML or JSON file, which will be processed by the named pipe with the privileges of the user under whose context the service is running. This allows for Server-Side Request Forgery to any Windows system on which the agent is installed and which provides communication via SMB or WebDav. This issue was fixed in version 2.8.33.

Key dates

02Disclosure timeline

April 17, 2026 CVE published
April 17, 2026 Record updated