CVE-2026-71468
Description
A flaw was found in acm-search-v2-api-rhel9. When the getFederationConfig function refreshes its cache, it improperly reuses a user's bearer token for all subsequent federated requests until the cache expires. This allows other authenticated users to gain unauthorized access to remote managed hub search results, leading to information disclosure.
Statement
This Moderate impact flaw in Red Hat Advanced Cluster Management for Kubernetes allows for cross-user data access to remote managed hub search results. The vulnerability arises from the reuse of a bearer token across different user requests due to a shared cache. Exploitation requires the FEATURE_FEDERATED_SEARCH to be enabled, which is off by default and typically only configured in Global Hub deployments.
Mitigation
To mitigate this issue, ensure that the `FEATURE_FEDERATED_SEARCH` is not enabled if federated search functionality is not required. This feature is disabled by default in Red Hat Advanced Cluster Management for Kubernetes. If `FEATURE_FEDERATED_SEARCH` is enabled, consider disabling it to prevent unauthorized cross-user data access. Disabling this feature will impact the ability to perform federated searches across managed hubs.
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 | 5.3 | N/A | 5.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | High | N/A | High |
| Integrity Impact | None | N/A | None |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity
A user can access restricted functionality and/or sensitive information that may include administrative functionality and user accounts.
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