CVE-2026-93685
Description
A flaw was found in the multicluster-observability-addon. A remote attacker can access a debug endpoint without authentication, due to a misconfiguration in the underlying addon-framework library. This allows for the disclosure of sensitive operational information, such as goroutine, heap, and command-line details, after completing a basic encrypted connection. This vulnerability does not enable direct remote code execution.
Statement
This Moderate severity flaw in Red Hat Advanced Cluster Management for Kubernetes' multicluster-observability-addon exposes unauthenticated debug endpoints on port 8443. While not leading to direct remote code execution, this allows an attacker to disclose sensitive information such as goroutine, heap, and command-line details after completing a trivial TLS handshake, increasing the attack surface for further reconnaissance.
Mitigation
To mitigate this issue, restrict network access to the pods running the `multicluster-observability-addon` to only trusted internal components. Implement network policies within your Kubernetes environment to limit inbound connections to the affected pods on ports 6060 and 8443 from untrusted sources. This operational control reduces the attack surface by preventing unauthorized access to the unauthenticated debug endpoints.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.4 | N/A | N/A |
| Attack Vector | Adjacent Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | Low | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | Low | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Frequently Asked Questions
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