CVE-2026-77177
Critical
Description
Open GenAI Stack (aka ogx-ai) 2026-06-11, as used in the Meta AI backend for WhatsApp and other products, allows code execution because prompt injection (with Jinja2 template syntax) can be used to achieve server-side expression evaluation without sanitization.
SeverityCritical
CVSS9.8
Exploit probability—
ProductOpen Genai Stack Ogx-ai
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-94Code injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Open GenAI Stack ogx-ai | 2026-06-11 ≤ v | — |
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