CVE-2025-9276
CVE-2025-9276 is a critical-severity vulnerability in Cockroachlabs Cockroach-k8s-request-cert with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-258.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-26436
- Weakness: CWE-258
- Affected product: Cockroachlabs Cockroach-k8s-request-cert
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2025-9276?
- CVE-2025-9276 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-9276 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-9276?
- CVE-2025-9276 affects Cockroachlabs Cockroach-k8s-request-cert. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-9276?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2025-9276 have an EU (EUVD) identifier?
- Yes. CVE-2025-9276 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26436.
- When was CVE-2025-9276 published?
- CVE-2025-9276 was published on 2025-09-02 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:cockroachlabs:cockroach-k8s-request-cert:-:*:*:*:*:*:*:*
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