CVE-2026-14452
High
Description
Improper validation of the reset_url parameter of the Setup in-page search in Checkmk <2.5.0p15, <2.4.0p38, <2.3.0p51 and 2.2.0 (EOL) allows an attacker to execute arbitrary script in the session of an authenticated user with Setup access, or to redirect that user to an arbitrary external site, by tricking the user into opening a crafted URL and clicking the Reset button or submitting an empty search.
SeverityHigh
CVSS8.6
Exploit probability—
ProductCheckmk
PublishedOct 16, 2026
First seenOct 16, 2026
Weakness typeCWE-601Open redirect
How to fix
Update
- Checkmk GmbH Checkmk2.5.0p15, 2.4.0p38, 2.3.0p51 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Checkmk GmbH Checkmk | 2.5.0 ≤ v < 2.5.0p15, 2.4.0 ≤ v < 2.4.0p38, 2.3.0 ≤ v < 2.3.0p51, 2.2.0 | 2.5.0p15, 2.4.0p38, 2.3.0p51 |
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