CVE-2026-33456

EUVD-2026-21344
Livestatus injection in the notification test mode in Checkmk <2.5.0b4 and <2.4.0p26 allows an authenticated user with access to the notification test page to inject arbitrary Livestatus commands via a crafted service description.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
CheckmkCNA
5.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
checkmkcheckmk
2.4.0 ≤
𝑥
≤ 2.4.0p25
CNA
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
check-mk
bionic
needs-triage
jammy
dne
noble
dne
questing
dne
xenial
needs-triage
Common Weakness Enumeration
References
https://checkmk.com/werk/17989