CVE-2026-19486: Google Cloud Gemini Enterprise Agent Platform App Builder

High severity, CVSS 8.7. EPSS: 0.3% chance of exploitation in the next 30 days.

A Server-Side Request Forgery (SSRF) vulnerability in Google Cloud Gemini Enterprise Agent Platform App Builder versions prior to 2026-06-01 on Google Cloud Platform allows an unauthenticated attacker to leak the Compute Engine default service account access token. This vulnerability was patched on 01 June 2026. Users will need to redeploy their previously deployed apps.

Affected products

• Google Cloud Gemini Enterprise Agent Platform App Builder: from 2025-10-11, before 2026-06-01 (fixed in 2026-06-01)

Published 2026-09-11. Last modified 2026-09-11.