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).
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 26.1007.21434, 26.1007.2314.0
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. Codex Desktop for Windows must be fully closed, with no ChatGPT.exe process running. The user must open an attacker-controlled .library-ms file in File Explorer. The user must expand the library in the left navigation pane. The user must right-click the library's child item and select "Open project in ChatGPT" from the modern Windows 11 context menu.
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 17/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
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.
Read the original 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.
cve.now Index
- Exploitation0/40No signal
- Exposure8/25Specific setups only, reachable over the network
- Reach?/20Unknown. No tracked technology or package matched
- Severity9/10CVSS 8.0, total technical impact per CISA
- No patch0/5No signal
What would change the score
- Would score about 67 if added to CISA KEV
- Would score about 62 if CISA's SSVC rates exploitation active
- Would score about 24 if CISA's SSVC rates it automatable
What to do
Check whether your setup matches what the bug needs.
Codex Desktop for Windows must be fully closed, with no ChatGPT.exe process running. The user must open an attacker-controlled .library-ms file in File Explorer. The user must expand the library in the left navigation pane. The user must right-click the library's child item and select "Open project in ChatGPT" from the modern Windows 11 context menu.Upgrade to a fixed version: 26.1007.21434, 26.1007.2314.0.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- 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
Evidence 1
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-110930
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: cve.now feed data
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: cve.org
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: cve.now feed data
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: cve.org
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: cve.org