# CVE-2026-85299: Missing Authorization in Compute Engine allows Cross-Project Disk Exfiltration

> CVE-2026-85299: Missing Authorization in Compute Engine allows Cross-Project Disk Exfiltration. CVSS 8.3 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-85299
Last updated: 2026-10-27T15:08:50Z

- Published: 2026-10-27 09:02 UTC · Updated: 2026-10-27 15:08 UTC · Assigner: GoogleCloud
- CVSS: 8.3 (CVSS 4.0) · Severity: High
- EPSS: 0.26%, 17th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-862

## 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 vendors and products

- Google Cloud: Compute Engine

## Tracked companies

- [Google Cloud](https://rewindex.com/company/google-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-85299)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-85299)
- [https://docs.cloud.google.com/compute/docs/security-bulletins\#gcp-2026-073](https://docs.cloud.google.com/compute/docs/security-bulletins#gcp-2026-073)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-85299 · Markdown: https://rewindex.com/cve/CVE-2026-85299.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-85299 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:43:40.298Z