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

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

- **Severity:** High 8.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jul 2026
- **Updated:** 30 Jul 2026
- **Also known as:** GHSA-96fx-pqc3-28xv

## 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 (Server-Side Request Forgery), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), CWE-20 (Improper Input Validation)

## 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.

## Is CVE-2026-67436 being exploited?

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

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-67436 and fix it if it is affected.

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

Affected product: Linuxfabrik monitoring-plugins. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-67436/ (Markdown: https://insights.sbomify.com/CVE-2026-67436/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-67436
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-67436
- OSV: https://osv.dev/vulnerability/CVE-2026-67436

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-67436/
Summaries are generated and may contain mistakes; the official description above is the record.