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High 8.6Published Oct 16, 2026

CVE-2026-14452Open redirect and XSS via reset_url parameter

Updated under an hour ago ()

Does this affect you?

It affects Checkmk GmbH Checkmk. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.41%, higher than 33% of scored CVEs.

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.

CVSS
8.6 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N
Weakness (CWE)
CWE-601
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.41% (percentile 33)
Assigned by
Checkmk
NVD analysis
Deferred
Record last updated
Oct 16, 2026
First seen by InfoSec Signals
Oct 16, 2026

Affected products

Affected products
Checkmk GmbH Checkmk
checkmk:checkmk (from the name)
from 2.5.0 before 2.5.0p15; from 2.4.0 before 2.4.0p38; from 2.3.0 before 2.3.0p51; 2.2.0
CNA record

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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