Highlights
Prototype Pollution: 1 prior fix. Scrutinize any change in this area.
lib/index.js: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Prototype Pollution: The only historically fixed vulnerability, a regex bypass allowing uppercase hex escapes to evade detection and pollute the prototype. The fix was narrowly scoped to specific escape sequences, indicating potential for other encoding variants (e.g., mixed-case, unicode escapes) to remain.