CVE-2026-26009
CRITICALCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2Tags
Description
Catalyst is a platform built for enterprise game server hosts, game communities, and billing panel integrations. Install scripts defined in server templates execute directly on the host operating system as root via bash -c, with no sandboxing or containerization. Any user with template.create or template.update permission can define arbitrary shell commands that achieve full root-level remote code execution on every node machine in the cluster. This vulnerability is fixed in commit 11980aaf3f46315b02777f325ba02c56b110165d.
Analysis
Command injection in Catalyst game server management platform. Install scripts in server templates allow injecting OS commands. …
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Remediation
Within 24 hours: Identify all systems running Catalyst and isolate them from production networks if possible; disable remote access to Catalyst administrative interfaces and restrict to VPN-only access. Within 7 days: Implement network segmentation to limit lateral movement from compromised Catalyst instances; conduct forensic analysis of access logs for signs of exploitation; establish alternative game server management procedures. …
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External POC / Exploit Code
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