CVE-2026-77177

Published Sep 29, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Server‑Side Code Execution via Prompt Injection in Open GenAI Stack
Type Values Removed Values Added
Title Server‑Side Code Execution via Prompt Injection in Open GenAI Stack
Type Values Removed Values Added
Weaknesses CWE-94
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
References

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 29, 2026, 7:49 PM
Reserved
Aug 20, 2026, 12:00 AM
Status
Deferred
Published
Sep 29, 2026, 4:17 PM
Modified
Sep 30, 2026, 5:32 PM