◆ WebKit WeeklyBeta

Matthew Finkel (unlinked)

WebKit security specialist

This contributor's GitHub account is not linked to their git commits. Commit history tracking is limited to data collected from weekly reports.
15 commits (6mo)
5 security fixes

Summary

Finkel works the Cocoa networking layer — cookie policy (partitioned cookies, SameSite handling), WebSocket and WebTransport connection setup, and Private Click Measurement proxying — spread across WebKit, Platform, and WebCore, with the remainder going to test re-enablement and site-specific quirks. The security fixes are almost all one bug class: a privacy or cookie-policy attribute that the primary resource-load path sets correctly but an alternate transport or unusual document origin fails to propagate — SameSite Strict/Lax bypassed for srcdoc iframes, partitioned-cookie flags missing on WebSocket requests, WebTransport connections left unmarked, PCM traffic escaping the proxy. Systematic-variant candidate: enumerate every code path in the Cocoa stack that constructs a network connection and check whether it carries the partitioning, SameSite, and proxy attributes the document loader applies.

Components

WebKit
43%
Platform
30%
WebCore
22%
WTF
4%

Security Fix History

Hardening Commits

Recent Commits

← All Contributors