What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.8 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-29 · updated 2026-10-24
• Weakness: CWE-59

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.

Affected products

• Linuxfabrik monitoring-plugins: 6.0.0

References

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

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