CVE-2025-9276

9.8 criticalEPSS 0.7%

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.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWE: CWE-258
Published: 2025-09-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cockroachlabs:cockroach-k8s-request-cert

References

https://www.zerodayinitiative.com/advisories/ZDI-25-855/

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