Mac Intel (x64) Codex Desktop cannot launch: CSSMERR_TP_CERT_REVOKED

What version of the Codex App are you using (From “About Codex” dialog)?

Codex Desktop x64 (Intel) Installer: Codex-latest-x64.dmg Timestamp: May 9, 2026 Unable to open About dialog because the app is blocked before launch.

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Darwin 24.6.0 x86_64 i386

What issue are you seeing?

Summary

The Intel (x64) version of Codex Desktop suddenly stopped working after the latest update.

The application had been working normally until July 10.

Now macOS automatically displays:

Malware Blocked and Moved to Trash

The latest ChatGPT Desktop also cannot be installed because it only supports Apple Silicon.

I verified the installer and found that the application itself is intact.

codesign:

Identifier=com.openai.codex
Format=app bundle with Mach-O thin (x86_64)
TeamIdentifier=2DC432GLL2

Gatekeeper result:

CSSMERR_TP_CERT_REVOKED

The installer mounts correctly.

The application exists inside the DMG.

This appears to be caused by the revoked Apple signing certificate rather than a corrupted installer.

What steps can reproduce the bug?

1. Download Codex-latest-x64.dmg.
2. Mount the installer.
3. Copy Codex.app to Applications.
4. Launch Codex.app.

Result:

macOS immediately displays:

"Malware Blocked and Moved to Trash"

Running:

spctl -a -vv "/Volumes/Codex Installer 1/Codex.app"

returns:

CSSMERR_TP_CERT_REVOKED

What is the expected behavior?

The official Intel (x64) build should launch normally.

If Intel Macs are still supported, please publish a new Intel build signed with a valid Apple Developer certificate.

If Intel support has ended, please publish an official announcement.

Additional information

Device:

• iMac Pro 2017
• Intel Xeon W
• 64 GB RAM
• macOS Sequoia 15.7.3

This issue started without any changes to my Mac.

The application worked normally until July 10.

On July 11, macOS began reporting:

macos@192 ~ % spctl -a -vv "/Volumes/Codex Installer 1/Codex.app"
/Volumes/Codex Installer 1/Codex.app: CSSMERR_TP_CERT_REVOKED

CSSMERR_TP_CERT_REVOKED

and automatically moved Codex.app to Trash.

This suggests the issue is related to the revoked signing certificate rather than the application itself.