CVE-2026-66780
Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity
No known exploitation. EPSS puts it in the 44th percentile. Only a workaround so far.
What to do
No fixed build is published yet. The vendor describes a workaround.
What it is
From the CVE record
A flaw was found in the submariner-operator component. The `submariner-k8s-broker-cluster` Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information. Consequently, an attacker can redirect inter-cluster tunnel traffic, enabling a Man-in-the-Middle (MITM) attack across the entire cluster mesh.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.6% chance of exploitation activity in the next 30 days, which ranks it in the 44th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
19 events over 34 days, from the signal feeds we watch.
- Workaround availablerecord updated
- Workaround availablerecord updated
- Workaround availableworkaround available, record updated, record updated
- Workaround availablerecord updated
- Workaround availablerecord updated
- Workaround availablerecord updated
Affected products
- Red Hat Advanced Cluster Management for Kubernetes 2.11Cloud & SaaS / container-orchestration
- Red Hat Advanced Cluster Management for Kubernetes 2.13Cloud & SaaS / container-orchestration
- Red Hat Advanced Cluster Management for Kubernetes 2.14Cloud & SaaS / container-orchestration
- Red Hat Advanced Cluster Management for Kubernetes 2.15Operating Systems / linux-distro
- Red Hat Advanced Cluster Management for Kubernetes 2.16Operating Systems / linux-distro
- Red Hat Advanced Cluster Management for Kubernetes 2.17Operating Systems / linux-distro
- Red Hat Advanced Cluster Management for Kubernetes 2Cloud & SaaS / container-orchestration
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Scored 6.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Credential AccessT1552Unsecured Credentialsmedium confidence
Sources
References in the record
- access.redhat.com/errata/RHSA-2026:63016
- access.redhat.com/errata/RHSA-2026:67538
- access.redhat.com/errata/RHSA-2026:67539
And 6 more references. See all after sign-in
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