CVE-2026-19593 (GCVE-0-2026-19593)

Vulnerability from cvelistv5 – Published: 2026-09-01 17:10 – Updated: 2026-09-02 17:19
VLAI
Summary
OpenAI Codex Desktop for Windows and macOS automatically inspected Git metadata and working-tree status when a user opened a workspace. If the workspace contains a repository with preserved attacker-controlled .git/config, the attr.tree setting and a configured clean or process filter can cause Git to run an attacker-controlled program. The program runs outside Codex's command sandbox with the signed-in user's privileges, without a workspace-trust prompt, command approval, or interaction with a model. The attacker can read, modify, or delete files and access credentials available to that user. Exploitation requires Git to be available on PATH and the user to open the attacker-prepared repository with its local Git configuration intact. An ordinary Git clone does not copy the source repository's .git/config and is not sufficient by itself.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:19 UTC
CWE
  • CWE-15 - External Control of System or Configuration Setting
References
Impacted products
Vendor Product Version CPE status
OpenAI Codex Desktop Affected: 260202.0859 , ≤ 26.513.31313 (custom)
Unaffected: 26.519.22136
guessed Create a notification for this product.
OpenAI Codex Desktop Affected: 26.304.38 , ≤ 26.513.40821 (custom)
Unaffected: 26.519.21041
guessed Create a notification for this product.
OpenAI Codex Desktop (Microsoft Store package) Affected: 26.304.38.0 , ≤ 26.513.4821.0 (custom)
Unaffected: 26.519.2081.0
guessed Create a notification for this product.
Show details on NVD website

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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