What’s Vulnerable › Vulnerabilities

CVE-2022-1934: Use After Free in mruby/mruby

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-31 · updated 2026-06-17
• Weakness: CWE-416

Description

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Affected products

• mruby/mruby: before 3.2 — fixed in 3.2

How to fix

Upgrade to a fixed version: mruby/mruby 3.2. Check the vendor advisory for mitigations.

References

• https://github.com/mruby/mruby/commit/aa7f98dedb68d735a1665d3a289036c88b0c47ce
• https://huntr.dev/bounties/99e6df06-b9f7-4c53-a722-6bb89fbfb51f
• https://github.com/mruby/mruby/commit/aa7f98dedb68d735a1665d3a289036c88b0c47ce
• https://huntr.dev/bounties/99e6df06-b9f7-4c53-a722-6bb89fbfb51f

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