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AgentProv

2026-07-06 · 2026-Q3

OpenAI Codex Desktop Zero-Click Data Exfiltration (CVE-2026-14898)

Who actually said "do this"?

The question layer 2 asks, and failed here.
Fixable
Vendor patch
Vendor response
Patched
In the wild
No
Actor
Attacker

Target

OpenAI Codex desktop app for macOS before 26.527.31326

Impact

The app renders remote Markdown images returned by the model, so an indirect prompt injection can make the model build a remote image URL containing sensitive data that is fetched automatically with no user click, leaking it to an attacker server

Root cause

Auto-fetching remote images from untrusted model output (CWE-200), the same image-based exfiltration pattern seen in other assistants

CVE

Sources

Catalog

Cite this: AgentProv incident record: OpenAI Codex Desktop Zero-Click Data Exfiltration (CVE-2026-14898) (2026-07-06). https://agentprov.com/incidents/2026-07-06-openai-codex-desktop-zero-click-data-exfiltration-cve-2026-14898