---
cve: "CVE-2026-14934"
severity: "CRITICAL"
cvss: 9.4
epss: "0.4%"
vendor: "Google Cloud"
kev: false
exploited: false
published: "2026-07-13 11:16:26"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T10:32:06+01:00"
---

# CVE-2026-14934

> 9.4 CRITICAL

## Beschreibung

A Missing Authorization vulnerability in the repository creation functionality in Google Cloud BigQuery, Dataform and Colab Enterprise, in the versions between October 2025 and May 10th, 2026, on Google Cloud Platform, allows an authenticated attacker to escalate privileges and perform cross-tenant repository takeover.


This vulnerability was patched on 10 May 2026, and no customer action is needed.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GoogleCloud**
- State: PUBLISHED
- Stand: 2026-07-13 13:12:16
- CNA-CVSS: **9.4** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-862** — Missing Authorization
  The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

## Angriffsmuster (CAPEC)

- [CAPEC-665 — Exploitation of Thunderbolt Protection Flaws](https://capec.mitre.org/data/definitions/665.html) _(Severity: Very High)_

## ATT&CK-Techniken

- [T1211 — Exploitation for Defensive Evasion](https://attack.mitre.org/techniques/T1211/)
- [T1542.002 — Pre-OS Boot: Component Firmware](https://attack.mitre.org/techniques/T1542/002/)
- [T1556 — Modify Authentication Process](https://attack.mitre.org/techniques/T1556/)

## BSI-Hinweise (deutsch)

- [Google Cloud Platform (BigQuery, Dataform, Colab Enterprise): Schwachstelle ermöglicht Privilegieneskalation](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-2297) — _BSI-Einstufung: hoch_
  Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Google Cloud Platform ausnutzen, um seine Privilegien zu erhöhen.

## Referenzen

- <https://docs.cloud.google.com/support/bulletins#gcp-2026-047>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-14934/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_