CVE-2026-65333
Overview
Advisory: Apple Security Advisory
Impact:
Description: Processing maliciously crafted web content may lead to an unexpected Safari crash
Researchers: OpenAI Codex Security - Amy Burnett
| Attribute | Value |
|---|---|
| CVE | CVE-2026-65333 |
| Bugzilla | 317603 |
| Component | JSC |
| Bug Class | LogicError |
| Severity | medium |
| Commit | 7d867192b7ab40a0… |
| Advisory | Apple Advisory |
Root Cause Analysis
This issue was addressed through improved state management.
Files Changed
Source Files
Source/JavaScriptCore/b3/B3Procedure.hSource/WTF/wtf/BackwardsGraph.h
Test Files
JSTests/wasm/gc/backwards-graph-multi-backedge-licm.jsSource/JavaScriptCore/b3/testb3.hSource/JavaScriptCore/b3/testb3_1.cppSource/JavaScriptCore/b3/testb3_7.cpp