What’s Vulnerable › Vulnerabilities
CVE-2026-105331: mk-oracle: Local privilege escalation via malicious Oracle Instant Client
- Severity: medium (CVSS 5.2 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: 2026-10-08 · updated 2026-10-09
- Weakness: CWE-426
Description
Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.
Affected products
- Checkmk GmbH Checkmk: from 2.5.0 before 2.5.0p10 — fixed in 2.5.0p10
How to fix
Upgrade to a fixed version: Checkmk GmbH Checkmk 2.5.0p10. Check the vendor advisory for mitigations.
References
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