CVE-2026-77177

CriticalCVSS 9.8/10Last modified Sep 30, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 29, 2026
Last modified
Sep 30, 2026
NVD status
Deferred

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CVE-2026-77177: Critical severity, CVSS 9.8 | Vulnix