# Microsoft's AI scanner found Rust standard library bugs that safe code can trigger > Source: > Published: 2026-11-09 21:26:57+00:00 # Microsoft's AI scanner found Rust standard library bugs that safe code can trigger **FORGE Lab says Hyenas helped surface soundness flaws in Rust core and std.** By [Ryan Merket](https://runtimewire.com/author/ryan-merket) · Published Primary source: [www.microsoft.com](https://www.microsoft.com/en-us/security/blog/2026/11/09/forge-lab-uses-agentic-tools-to-identify-memory-safety-issues-in-rust/) ## Why it matters Rust is being adopted for foundational software on the promise that safe code cannot cause memory-safety failures. Microsoft's reproduced stdlib findings show where that promise depends on unsafe code, and why AI tools that understand operating-system behavior may expand the search space for soundness bugs. Microsoft's FORGE Lab said on November 9th that it found several memory-safety issues in Rust's core and std libraries, including cases where code written entirely in safe Rust can trigger undefined behavior.… When you purchase through links in our articles, [we may earn a small commission](https://runtimewire.com/affiliate-monetization-standards). This doesn’t affect our editorial independence.