CVE-2026-43716

Overview

Advisory: Apple Security Advisory

Impact:

Description: Processing maliciously crafted web content may lead to an unexpected Safari crash

Researchers: Maher Azzouzi, Tuan and Duc from Calif.io, OpenAI Codex Security - Amy Burnett, Evan Lambert

Attribute Value
CVE CVE-2026-43716
Bugzilla 313473
Component JSC
Bug Class LogicError
Severity medium
Commit a012babd4f1611a4…
Advisory Apple Advisory

Root Cause Analysis

The issue was addressed with improved memory handling.

Files Changed

Source Files

  • Source/JavaScriptCore/runtime/ArrayBuffer.cpp
  • Source/JavaScriptCore/runtime/ArrayBuffer.h
  • Source/JavaScriptCore/runtime/JSArrayBuffer.cpp
  • Source/JavaScriptCore/runtime/JSArrayBuffer.h
  • Source/JavaScriptCore/runtime/JSArrayBufferPrototype.cpp
  • Source/JavaScriptCore/wasm/WasmMemory.h
  • Source/JavaScriptCore/wasm/js/JSWebAssemblyMemory.cpp

Test Files

  • JSTests/wasm/stress/wasm-resizable-buffer-resize-after-gc.js