CVE-2022-1276: Mruby

Critical severity, CVSS 9.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Out-of-bounds Read in mrb_get_args in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.

Affected products

• Mruby Mruby: before 3.2 (fixed in 3.2)

Published 2022-04-10. Last modified 2026-06-17.