CVE-2026-66786

Submariner 's certificate-based IPsec authentication mode (IPSecCertAuthMode: true) is vulnerable to ipsec.conf stanza injection via remote-supplied CableName and subnets fields in the Custom Resource Definition. Because these free-form strings are incorporated into the connection configuration w...

CVE-2026-66786 Submariner: submariner: ipsec.conf stanza injection via remote-supplied cablename and subnets

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...