darryl-apple
WebKit contributor
Summary
Works primarily on WebKit's process-model and platform security plumbing — sandbox extensions and entitlement lookups on MacCatalyst, signing-identifier handling for WebContent variants, Lockdown Mode process-swap behavior, and site isolation in the UI process. The security fixes cluster tightly on gating test-only IPC endpoints (`InstallMockContentFilter`, `AddOriginAccessAllowListEntry`) behind `AllowTestOnlyIPC`, back-to-back in the same month — the signature of an audit sweeping message handlers that were reachable outside test configurations. Systematic-variant candidate: the remaining unguarded test-support IPC surface in the WebKit message receivers, since two entries in that class were already found reachable without the `AllowTestOnlyIPC` check.
Components
Security Fix History
Hardening Commits
Recent Commits
- 2026-07-30 [Site Isolation] Web Inspector: UI process crash in didCommitProvisionalFrame when a provisional subframe commits after
- 2026-06-15 Gate InstallMockContentFilter IPC behind AllowTestOnlyIPC ·
- 2026-06-12 Gate AddOriginAccessAllowListEntry IPC behind AllowTestOnlyIPC 2026-W23
- 2026-01-29 REGRESSION(304044@main): ProcessSwap API tests fail when opting out of Lockdown Mode
- 2026-01-14 use signing-identifier to distinguish webcontent variant
- 2026-01-13 Fix sandbox extension file access failures on MacCatalyst caused by multiple entitlement lookups