CVE-2026-1727CWE-200

Information Disclosure via Bucket Squatting in Google Cloud Agentspace.

Critical · published February 6, 2026

CVSS v4.0
9.1
EPSS
0%
Percentile
20.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.1 · CRITICAL
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
EPSS
0.00293 · 20.8th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-02-06T21:44Z
EPSS history
Timeline
  • 06 FEB 21:44Z
    Information Disclosure via Bucket Squatting in Google Cloud Agentspace.
    cvelistv5