CVE-2026-105331
Checkmk: mk-oracle: Local privilege escalation via malicious Oracle Instant Client
Checkmk GmbH Checkmk
CVSS
5.2MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.08%Chance of exploitation activity in the next 30 days, higher than 0% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 2.5.0p10CheckmkCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- Checkmkaffected: 2.5.0 before 2.5.0p10CVE List