← WebKit Silent-Fix Report — 2026-W34
7684281e4877ed748ef81431c1556cb80db78285 Protect dynamic web extension properties from a null page
severity low
class LogicError
confidence 0.55
WebExtension namespace property check
Primitive: Null-page dereference in web extension property allowance checks
Triage note: Adds page && page->corePage() null guards before dereferencing in isPropertyAllowed, protecting against a null-page crash when checking offscreen/sidePanel properties.
Triage note: Adds page && page->corePage() null guards before dereferencing in isPropertyAllowed, protecting against a null-page crash when checking offscreen/sidePanel properties.
Security-relevant, below the exploitable-grade bar for a full root-cause writeup. The triage verdict is above; the side-by-side patch is below.
Before / after
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