Fuzzing JavaScript JIT Compilers With Optimization Path Feedback
inforesearchPeer-Reviewed
research
Source: IEEE Xplore (Security & AI Journals)May 8, 2026
Summary
This research presents OptFuzz, a tool for finding bugs in JavaScript JIT compilers (just-in-time compilers, which convert JavaScript code into machine code for faster execution) by testing different optimization paths rather than just code coverage. OptFuzz guides its testing by tracking which optimizations are triggered in the compiler's intermediate representation (IR, an internal code format), allowing it to discover bugs that occur when the compiler makes incorrect assumptions about the input code.
Classification
Attack SophisticationModerate
Monthly digest — independent AI security research
Original source: http://ieeexplore.ieee.org/document/11512976
First tracked: July 13, 2026 at 08:03 PM
Classified by LLM (prompt v3) · confidence: 95%