OS Command Injection in RPG MAKER MV and RPG MAKER MZ - CVE-2026-56137
Published: June 30, 2026
Vulnerability identifier: #VU135921
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-56137
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Gotcha Gotcha Games
Affected software:
RPG MAKER MV
RPG MAKER MZ
RPG MAKER MV
RPG MAKER MZ
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote unauthenticated attacker can trick a victim to open a specially crafted save-file and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2026-56137
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.