CVE-2026-67436 Linuxfabrik monitoring-plugins: SSRF and auth-token disclosure via unvalidated @odata.id link in redfish-* plugins

High 8.3 Published Updated

A malicious BMC can redirect authenticated Redfish requests to disclose credentials and perform server-side request forgery in Linuxfabrik monitoring plugins.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-67436?

CVE-2026-67436 is a high-severity server-side request forgery vulnerability in Linuxfabrik monitoring-plugins, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Linuxfabrik monitoring-plugins provides Python monitoring plugins for Icinga, Nagios, and related monitoring systems. In 6.0.0 and earlier, the redfish-* plugins built request URLs by concatenating an operator-supplied base URL with response-supplied @odata.id links, allowing a malicious or compromised BMC to redirect authenticated Redfish requests and disclose X-Auth-Token or HTTP Basic credentials.

Weakness: CWE-918, CWE-200, CWE-20

Which versions are affected by CVE-2026-67436?

How do I fix CVE-2026-67436?

No fix has been published for CVE-2026-67436 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-67436 being exploited?

There is no known exploitation of CVE-2026-67436 in the wild and no public exploit code.

Sources

Also known as GHSA-96fx-pqc3-28xv.

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