CVE-2026-26009CRITICAL 9.9EPSS p37.8%

CVE-2026-26009CVE-2026-26009

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.

Scoring

CVSS 3.19.9 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS0.48% probability of exploitation · percentile 37.8% · 2026-06-18T12:00:27Z
Published2026-02-10
Last modified2026-04-15

Underlying weaknesses· 1

CWE-78

References

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

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.