CVE-2026-118965
Published:November 11, 2026
Updated:November 13, 2026
Path traversal in the discovered host label synchronization in Checkmk <2.5.0p19, <2.4.0p40 and 2.3.0 (EOL) allows an attacker in control of a remote site in a distributed monitoring setup to write arbitrary files on the central site and thereby execute code as the central site user.
Affected Packages
https://github.com/Checkmk/checkmk.git (GITHUB):
Affected version(s) >=v2.0.0p3 <v2.4.0p40 || >=v2.1.0b1 <v2.4.0p40 || >=v2.2.0b1-rc1 <v2.4.0p40 || >=v2.3.0b1-rc1 <v2.4.0p40 || >=v2.4.0b1-rc1 <v2.4.0p40Fix Suggestion:
Update to version v2.4.0p40https://github.com/Checkmk/checkmk.git (GITHUB):
Affected version(s) >=v2.5.0b1-rc1 <v2.5.0p19Fix Suggestion:
Update to version v2.5.0p19Related Resources (1)
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Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory
EPSS
Base Score:
0.46