CVE-2026-66783Submariner-operator: release workflow consumes same-org composite action via mutable @devel branch ref
Updated under an hour ago ()
Does this affect you?
It affects Red Hat Advanced Cluster Management for Kubernetes 2.17. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A flaw was found in the `submariner-operator` component of Red Hat Advanced Cluster Management for Kubernetes. This vulnerability allows a cluster administrator, or any user with permissions to modify the Submariner Custom Resource (CR), to specify an unvalidated image path. This lack of validation enables an attacker to execute arbitrary code with elevated privileges across the entire cluster, including control-plane nodes, by deploying a malicious image.
- CVSS
- 4.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-1357
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
from 1788105072 not affected | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:63016vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-66783vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2507528issue-tracking, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.