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Medium 6.9Published Apr 17, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects Nomios Poland GREENmod. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.9 MEDIUM (v4.0, CNA)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
Weakness (CWE)
CWE-918
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
CERT-PL
NVD analysis
Awaiting Analysis
Record last updated
Apr 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Nomios Poland GREENmod
nomios_poland:greenmod (from the name)
before 2.8.33
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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