tuankiet65
WebCore security specialist
Summary
tuankiet65 works almost entirely inside WebCore, with the concentration in CSS — conditional rules (`@supports` named-feature and at-rule functions, `CSSConditionRule.supports`, `@container` style queries on pseudo-element hosts), anchor positioning, media query `<general-enclosed>` serialization, and CSS Module Script fetching — alongside Site Isolation and routine build/WPT-import upkeep. This is a spec-implementation profile rather than a security one; the security-tagged changes are few and both land in the same place, `CanvasRenderingContext2DBase`, covering a pointer returned by `fontProxy()` being re-used across a call that can invalidate it, and filtered drawing unnecessarily saving/restoring context state. Systematic-variant candidate: other Canvas2D drawing paths that hold raw pointers to font or style objects across operations capable of re-entering layout or style resolution.
Components
Security Fix History
- 2026-08-28 CanvasRenderingContext2DBase::drawTextUnchecked: don't re-use pointer returned by fontProxy() ·
- 2026-07-20 CanvasRenderingContext2D: filtered drawing should not need to save states 2026-W29
- 2026-06-01 [intersection-observer] IntersectionObserver::updateObservations could modify m_observationTargets when iterating throug ·
Hardening Commits
Recent Commits
- 2026-09-16 [Site Isolation] Rewrite color picker location API tests
- 2026-09-16 [AccentColor] Add Style::CurrentAccentColor
- 2026-09-15 [Re-land] [css-conditional-5] @container style queries on pseudo-element's host element uses old style data
- 2026-09-14 Don't pass the color picker rectangle when creating a color picker
- 2026-09-10 [Site Isolation] Fix location of color input picker, take 2
- 2026-09-09 [css-conditional-5] Support CSSContainerRule.conditions
- 2026-09-04 [CSS Module Scripts] Verify if a module type is allowed before fetching
- 2026-09-04 Refactor CachedCSSStyleSheet::sheetText to return std::expected
- 2026-09-03 [intersection-observer] Some performance/power optimizations
- 2026-09-01 [CMake] Add missing headers in TestWebKitAPI to fix build errors
- 2026-08-31 accent-color: auto shouldn't resolve to currentColor
- 2026-08-28 CanvasRenderingContext2DBase::drawTextUnchecked: don't re-use pointer returned by fontProxy() ·
- 2026-08-27 [css-conditional-3] Support CSSMediaRule.matches
- 2026-08-27 [css-conditional-5] @supports at-rule should check whether an at-rule is enabled via feature flags
- 2026-08-21 [CSS Module Scripts] Re-import WPT tests