CVE-2026-77177
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Sep 29, 2026
Vendor
unknown
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.