Local code execution via interpolated method names
Published Aug 13, 2026 · Updated Aug 13, 2026
Ruby code injection in amazing_print at commit dc890dfafdf07088ea901df53c19c2710e5c5234 allows local users to execute code in the host process. AwesomeMethodArray#grep inserts each matched method name into a percent-Q string and evaluates it in the supplied block binding without neutralizing Ruby interpolation syntax. Exploitation requires a block-form grep call and an application path through which an attacker controls a dynamic method name.
Summary
What happened
Ruby code injection in amazing_print at commit dc890dfafdf07088ea901df53c19c2710e5c5234 allows local users to execute code in the host process. AwesomeMethodArray#grep inserts each matched method name into a percent-Q string and evaluates it in the supplied block binding without neutralizing Ruby interpolation syntax. Exploitation requires a block-form grep call and an application path through which an attacker controls a dynamic method name.
The record
- CVE
- CVE-2026-67986
- Published
- Aug 13, 2026
- Updated
- Aug 13, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-94, T1059
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 13, 2026CVE publishedPublication date reported by the CVE source.
- Aug 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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