# CVE-2025-9276: Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability

> CVE-2025-9276: Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. CVSS 9.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-9276
Last updated: 2026-06-17T10:08:39Z

- Published: 2025-09-02 20:00 UTC · Updated: 2026-06-17 10:08 UTC · Assigner: zdi
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.65%, 51th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-258

## Description

Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability. This vulnerability could allow remote attackers to bypass authentication on systems that use the affected version of the Cockroach Labs cockroach-k8s-request-cert container image. The specific flaw exists within the configuration of the system shadow file. The issue results from a blank password setting for the root user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22195.

## Affected vendors and products

- Cockroach Labs: cockroach-k8s-request-cert

## Tracked companies

- [CockroachDB](https://rewindex.com/company/cockroachdb.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-9276)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-9276)
- [https://www.zerodayinitiative.com/advisories/ZDI-25-855/](https://www.zerodayinitiative.com/advisories/ZDI-25-855/)

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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-2025-9276 · Markdown: https://rewindex.com/cve/CVE-2025-9276.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-9276 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:19.023Z