CVE-2026-85299
Missing Authorization in Compute Engine allows Cross-Project Disk Exfiltration
- State
- Published
- Severity
- 8.3 High
- Published
- Oct 27, 2026
- Updated
- Oct 27, 2026
- Reserved
- Sep 3, 2026
Description
A Missing Authorization vulnerability in the disks.createSnapshot and regionDisks.createSnapshot APIs in Google Compute Engine versions prior to 2026-08-31 on Google Cloud Platform allows an authenticated attacker to exfiltrate cross-project disk data.
This vulnerability was patched on 31 August 2026, and no customer action is needed.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.3 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/U:Clear | GoogleCloud |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
Compute EngineGoogle Cloud |
|
References
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