The OpenAI Codex desktop app for macOS rendered remote images from Markdown in model responses. An attacker who could place an indirect prompt injection in content processed by Codex, such as a connected-tool result or another untrusted source, could induce the model to construct a remote image URL containing sensitive data. The app automatically fetched that URL when rendering the response, sending the embedded data to an attacker-controlled server without a separate user click. Successful exploitation could exfiltrate secrets and other information accessible in the Codex session, including API keys, source code, and data returned by connected tools. No direct integrity or availability impact was demonstrated, and there is no known exploitation in the wild.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OpenAI | Codex desktop app for macOS | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
Upgrade to 26.527.31326 or later. The product fix disables loading remote images from Markdown.
Workaround
If an upgrade is not possible, avoid processing untrusted content and connected-tool data in affected versions.
References
| Link | Providers |
|---|---|
| https://openai.com/codex/ |
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History
Mon, 06 Jul 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The OpenAI Codex desktop app for macOS rendered remote images from Markdown in model responses. An attacker who could place an indirect prompt injection in content processed by Codex, such as a connected-tool result or another untrusted source, could induce the model to construct a remote image URL containing sensitive data. The app automatically fetched that URL when rendering the response, sending the embedded data to an attacker-controlled server without a separate user click. Successful exploitation could exfiltrate secrets and other information accessible in the Codex session, including API keys, source code, and data returned by connected tools. No direct integrity or availability impact was demonstrated, and there is no known exploitation in the wild. | |
| Weaknesses | CWE-200 | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: OAI
Published:
Updated: 2026-07-06T19:41:36.632Z
Reserved: 2026-07-06T19:35:48.882Z
Link: CVE-2026-14898
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses