CVE-2026-14898

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-06 · updated 2026-10-25
Weakness: CWE-200

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.

Affected products

OpenAI Codex desktop app for macOS: before 26.527.31326 — fixed in 26.527.31326

How to fix

Upgrade to a fixed version: OpenAI Codex desktop app for macOS 26.527.31326. Check the vendor advisory for mitigations.

References

https://openai.com/codex/

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