Paper/Archive/CVE-2025-9276

CVE-2025-9276

Cockroach Labs cockroach-k8s-request-cert — Cockroach Labs cockroach-k8s-request-cert Empty Root Password Authentication Bypass Vulnerability

EPSS 0.7%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 51.3.513 × 2010.3 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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

ProductAffectedFixed inSource

cockroach-k8s-request-certcockroachdb/cockroach-k8s-request-cert:latest–CNA

Scores by source

zdi (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refzerodayinitiative.com/advisories/ZDI-25-855