What is CVE-2025-9276?

CVE-2025-9276 is a critical-severity vulnerability in Cockroach Labs Cockroach-K8s-Request-Cert, classified under CWE-258. CVSS score: 9.8/10. Published 2025-09-02.

How severe is CVE-2025-9276?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Cockroach Labs Cockroach-K8s-Request-Cert

CVE-2025-9276

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.

EPSS: 0.007 (48.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cockroach Labs Cockroach-k8s-request-cert — versions cockroachdb/cockroach-k8s-request-cert:latest
Cockroachlabs Cockroach-k8s-request-cert

Weakness classification (CWE)

CWE-258

References

zdi-disclosures@trendmicro.com (x_research-advisory, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2025-9276?: CVE-2025-9276 is a critical-severity vulnerability in Cockroach Labs Cockroach-K8s-Request-Cert, classified under CWE-258. CVSS score: 9.8/10. Published 2025-09-02.
How severe is CVE-2025-9276?: Critical severity. CVSS v3 base score is 9.8 out of 10.