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Report · Zero Day InitiativeAbout CVE-2026-110930Published

ZDI-26-968: (Pwn2Own) OpenAI Codex GUI OpenProjectInCodex Argument Injection Remote Code Execution Vulnerability

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Authoritative record:CVE-2026-110930· High 8.0

Not known to be exploited · CVSS 8.0 High.

Data as of 13 Nov 2026, 20:34 UTC

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.18.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
OpenAICodex Desktop for WindowsAffected
  • >=26.820.60940 <=26.1002.52244
Fixed in–
OpenAICodex Desktop for Windows (Microsoft Store/MSIX package)Affected
  • >=26.820.7780.0 <=26.1002.7124.0
Fixed in–

AI-suggested

Since user interaction is required, educating users to avoid opening untrusted files may reduce risk until an official fix is available.

Description

A remote code execution vulnerability exists in OpenAI Codex via the OpenProjectInCodex argument injection. Exploitation requires user interaction, specifically opening a malicious file. The vulnerability has a high severity rating of 7.8 assigned by ZDI and is tracked as CVE-2026-110930.

References

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