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CVE-2026-85299

Missing Authorization in Compute Engine allows Cross-Project Disk Exfiltration

HIGH
8.3
CVSS Score
Published: October 27, 2026 at 09:02 AM UTC
Updated: October 27, 2026 at 03:08 PM UTC
1 product affected across 1 vendorCompute Engine

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Severity
HIGH8.3
Exploit prediction
EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://docs.cloud.google.com/compute/docs/security-bulletins#gcp-2026-073

CVSS

8.3HIGHGoogleCloud
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-862

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