Codex Desktop crashes when Excalidraw opens a local image

Codex Desktop crashes when Excalidraw opens a local image

Codex version

26.707.91948

Platform

• macOS 26.5.1 (Build 25F80)
• Apple Silicon / arm64 (Apple M1)
• Electron/Chromium 150.0.7871.115

Issue

Codex Desktop exits completely when a local image is selected from Excalidraw in the built-in browser.

This is reproducible and appears to crash the embedded browser process rather than showing a normal page or renderer error.

Steps to reproduce

1. Open the Codex built-in browser.
2. Navigate to https://www.excalidraw.com/.
3. Use Excalidraw's image/open function.
4. Select a local image using the macOS file picker.
5. Codex Desktop exits immediately.

Expected behavior

The selected image should be imported into Excalidraw. If the image cannot be decoded or local-file access is unsupported, the browser should display a recoverable error without terminating Codex Desktop.

Actual behavior

The entire Codex Desktop application exits.

Crash evidence

Two reproductions on July 16, 2026 generated pending Crashpad sidecars at approximately 15:04 and 15:09 local time:

{"osarch":"arm64","ptype":"browser"}

The files were created under:

~/Library/Application Support/Codex/Crashpad/pending/

No corresponding macOS DiagnosticReports crash file was generated.

Additional information

• The crash occurs through a user-driven local file picker inside the built-in browser.
• This may be related to local-file authorization, image decoding, or the embedded Chromium browser process.
• Related but less severe file-upload limitation: https://github.com/openai/codex/issues/20785
• No local image, image contents, account identifiers, or full telemetry logs are included in this report.