What’s Vulnerable › Vulnerabilities

CVE-2022-1106: use after free in mrb_vm_exec in mruby/mruby

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-27 · updated 2026-06-17
• Weakness: CWE-416

Description

use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

Affected products

• mruby/mruby: through 3.1

References

• https://github.com/mruby/mruby/commit/7f5a490d09f4d56801ac3a3e4e39e03e1471b44c
• https://huntr.dev/bounties/16b9d0ea-71ed-41bc-8a88-2deb4c20be8f
• https://github.com/mruby/mruby/commit/7f5a490d09f4d56801ac3a3e4e39e03e1471b44c
• https://huntr.dev/bounties/16b9d0ea-71ed-41bc-8a88-2deb4c20be8f

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