CVE-2026-77177
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.
- Published Sep 29, 2026
- CVSS 9.8 critical
- 0.6% chance of exploitation in the next 30 days (EPSS)