CVE-2026-66780 (GCVE-0-2026-66780)
Vulnerability from cvelistv5 – Published: 2026-08-18 17:32 – Updated: 2026-09-21 11:22
VLAI
EPSS
VEX
Title
Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 18:44 UTC
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:63016 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67538 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67539 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67540 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67541 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67542 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67543 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-66780 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507524 | issue-trackingx_refsource_REDHAT |
Impacted products
9 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 |
Unaffected:
1789135606 , < *
(rpm)
cpe:/a:redhat:acm:2.11::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1789131397 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1789136328 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1789136327 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 |
Unaffected:
1789136320 , < *
(rpm)
cpe:/a:redhat:acm:2.16::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1788105072 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1788073481 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1788572527 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2
|
Date Public
2026-08-18 16:35
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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