CVE-2026-66786
criticalA flaw was found in submariner.
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.
CVSS
9.1
9.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-09-02 18:21
Modified: 2026-10-19 18:17
NVD status: Awaiting Analysis
Last synced 1 day ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2026:63016 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:85227 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-66786 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2507531 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗