← WebKit Silent-Fix Report — 2026-W21

0cf61b7a19  Fix ProxyingNetworkAgent message receiver leak across process swaps

severity low class MemoryLeak confidence 0.55 WebKit Web Inspector / Site Isolation
BJ Burg Fri May 22 09:43:33 2026 -0700 full: 0cf61b7a19b4202e3547751c4b016033582be19f bug report ↗ view on GitHub ↗
Primitive: IPC message-receiver leak across process swaps
Triage note: Fixes an IPC receiver leak across site-isolation process swaps (follow-up to the earlier regression).

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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