CRITICALCVSS v4 9.4Vulnerability

CVE-2026-121374

Argument injection in the Kubernetes special agent in Checkmk <2.5.0p19, <2.4.0p40, and 2.3.0 (EOL) allows a user with permission to edit rules in at least one folder to write files to arbitrary locations writable by the site user via crafted node roles in the "Exclude nodes based on their role" rule option, leading to code execution as the site user.

Properties

Severity
CRITICAL
Nvd fetched at
2026-11-11T23:49:45.533241+00:00
Cvss severity
CRITICAL
Cvss score
9.4
Retrieved at
2026-11-11T23:50:18+00:00
Score
9.4
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-121374
Cvss vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
First seen by Signal
2026-11-11T11:39:15+00:00
Name
CVE-2026-121374
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published at
2026-11-11T11:17:14.377
Last modified
2026-11-11T11:17:14.487

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CVE-2026-121374 (CVSS v4 9.4) — Ninja Signal Threat Intelligence | Ninja Signal