Highlights
Prototype Pollution: 3 prior fixes. Scrutinize any change in this area.
dom-element.js: most-fixed (2 issues). Treat as high-risk during review.
2 high-severity fixes 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: Attackers can bypass property deletions or pollute the global Object prototype by passing payload keys like __proto__ or constructor to namespaced attribute removal functions. This has required multiple successive fixes to properly restrict deletion to the object's own properties.