VULNERABILITY INTELLIGENCE
CVE-2026-66786
CVSS score9.1 CRITICAL
EPSS probability1.37%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Description
A flaw was found in submariner. In cert-auth mode, the connection configuration is built using free-form strings from the Custom Resource Definition (CRD) without proper validation. A malicious cluster can exploit this by publishing a CableName that includes newlines and ipsec.conf directives. This allows an attacker to inject arbitrary configuration parameters or execute commands through leftupdown hooks, leading to remote code execution as root on the gateway node.
Weakness classification
- secalert@redhat.com: CWE-94