
Browser JIT Exploitation 2026: Glasswing Finds JIT Vulnerability | Decryption Digest
Just-In-Time compilation is the performance heart of every modern browser JavaScript engine. It is also one of the most complex and historically exploitable attack surfaces in consumer software. Project Glasswing's Claude Mythos identified a JIT vulnerability through coordinated disclosure with browser vendors. This is a technical deep-dive for security engineers who need to understand the attack surface and harden their enterprise browser deployments.



