CVE-2026-1727Network attack vector

Sensitive data exposure via predictable bucket names

Published Feb 6, 2026 · Updated Feb 6, 2026

Information disclosure in Google Gemini Enterprise before December 12, 2025 allows remote attackers to read staged data via bucket squatting. The service derived predictable GCS bucket names for error logs and temporary GCS or Cloud SQL import staging, then wrote data to a bucket an attacker could pre-create. Exploitation requires predicting and claiming the bucket before its first use; exposed content is limited to data written for import staging or error logging.

CVSS severity9.1
Critical
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Google Gemini Enterprise before December 12, 2025 allows remote attackers to read staged data via bucket squatting. The service derived predictable GCS bucket names for error logs and temporary GCS or Cloud SQL import staging, then wrote data to a bucket an attacker could pre-create. Exploitation requires predicting and claiming the bucket before its first use; exposed content is limited to data written for import staging or error logging.

The record

CVE
CVE-2026-1727
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
Go standard library
Product
Gemini Enterprise
Classifications
CWE-200, CAPEC-131, T1530
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <12/12/2025

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Gemini Enterpriseversion=0 <12/12/2025

Published CVSS scores

9.1Google CloudCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:L/E:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CAPEC-131Resource Leak Exposure
T1530Data from Cloud Storage

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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