CVE-2026-105331

mk-oracle: Local privilege escalation via malicious Oracle Instant Client

MEDIUM

5.2

CVSS Score

Published: October 8, 2026 at 02:19 PM UTC

Updated: October 9, 2026 at 04:18 AM UTC

1 product affected across 1 vendorCheckmk

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Severity

MEDIUM5.2

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Checkmk · Checkmk

90%

2.5.0 ≤ v < 2.5.0p102.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://checkmk.com/werk/22619

References (1)

Vendor Advisory

Source: cverecord

https://checkmk.com/werk/22619

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.2MEDIUMCheckmk

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-426CWE-829

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