What’s Vulnerable › Vulnerabilities

CVE-2026-26009: Catalyst Affected by Remote Code Execution as Root via Containerized Install Script Execution

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-10 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• karutoil catalyst: before 11980aaf3f46315b02777f325ba02c56b110165d

References

• https://github.com/karutoil/catalyst/commit/11980aaf3f46315b02777f325ba02c56b110165d
• https://github.com/karutoil/catalyst/security/advisories/GHSA-xv5r-cpcw-8wr3

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