CVE-2026-55107: kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)
CRITICAL
CVSS 10.0
Exploit Available
2 PoC
Published: August 18, 2026 | Last Modified: August 18, 2026
Description
kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)
Ghostwire Analysis — What This Means Practically
- Critical CVSS score indicates maximum severity — remote code execution, authentication bypass, or complete system compromise is likely possible.
- 2 proof-of-concept exploits available on GitHub. Public exploit code lowers the barrier for both researchers and attackers.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.
Proof-of-Concept Exploits (2)
References