LLMHigh
CVE-2026-77177: Open GenAI Stack (aka ogx-ai) 2026-06-11, as used in the Meta AI backend for WhatsApp and other prod…
- Occurred
- Sep 29, 2026
- Published
- Sep 29, 2026
- Source
- NVD CVE
Summary
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.
Tags
- CVE
- CVE-2026-77177
- cvss:CRITICAL
Classification
Category confidence: 95%
Severity confidence: 90%
Rationale: Prompt injection vulnerability in Meta AI backend allows arbitrary code execution, representing a critical security flaw in an LLM system.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8