[macOS app] Crash after closing a printed PDF tab (EXC_BAD_ACCESS)

Product

Codex macOS desktop app

• App version: 26.727.51351 (6119)
• Architecture: ARM64
• macOS: 26.5.2 (25F84)
• Hardware: Mac16,7
• Crash time: 2026-08-03 11:35:57 +0100

Reproduction steps

1. Open multiple web tabs in the Codex app.
2. Open a PDF generated from a tax report.
3. Print the PDF using the macOS print workflow.
4. Close the PDF/tab after printing.

Actual result

The entire Codex app crashes immediately when the PDF/tab is closed.

Crash details

• Exception: EXC_BAD_ACCESS (SIGSEGV)
• Subtype: KERN_INVALID_ADDRESS at 0xefefefefefeff0e7
• Triggered thread: Thread 0, CrBrowserMain, main dispatch queue

Relevant crashed-thread frames:

0   Codex Framework   uv_os_getpid + 3232544
1   Codex Framework   uv_os_getpid + 3231936
2   Codex Framework   v8::Object::SetIntegrityLevel(...) + 156876
...
13  AppKit            -[NSTrackingArea mouseMoved:] + 116
14  AppKit            -[_NSTrackingAreaAKManager _mouseMoved:] + 448
15  AppKit            _routeMouseMovedEvent + 240
16  AppKit            -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 556
17  AppKit            -[NSWindow(NSEventRouting) sendEvent:] + 380
18  Codex Framework   uv_os_getpid + 3544308

The full macOS crash report is available if maintainers need it. Tax-report contents and personal crash identifiers have intentionally been excluded.