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TI-2026-21023 Aliases CVE-2026-26009

Catalyst Affected by Remote Code Execution as Root via Containerized Install Script Execution

Priority HIGH 76CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00562 46th percentileScored 2026-11-07
Fix Fixed catalyst (karutoil): 11980aaf3f46315b02777f325ba02c56b110165d

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
karutoilcatalystbefore 11980aaf3f46315b02777f325ba02c56b110165d11980aaf3f46315b02777f325ba02c56b110165dPatch availableCNA
  • catalyst Vendorkarutoil Affected before 11980aaf3f46315b02777f325ba02c56b110165d Fixed in 11980aaf3f46315b02777f325ba02c56b110165d Patch available CNA

Remediation

  • Fix · CNA catalyst (karutoil) Fixed in 11980aaf3f46315b02777f325ba02c56b110165d

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26009
  2. 2026-10-25 EPSS moved to the below the 50th percentile

References

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences