CVE-2020-25688

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-23 · updated 2026-06-17
Weakness: CWE-321

Description

A flaw was found in rhacm versions before 2.0.5 and before 2.1.0. Two internal service APIs were incorrectly provisioned using a test certificate from the source repository. This would result in all installations using the same certificates. If an attacker could observe network traffic internal to a cluster, they could use the private key to decode API requests that should be protected by TLS sessions, potentially obtaining information they would not otherwise be able to. These certificates are not used for service authentication, so no opportunity for impersonation or active MITM attacks were made possible.

Affected products

Red Hat Advanced Cluster Management for Kubernetes 2: before 2.0.5 — fixed in 2.0.5

How to fix

Upgrade to a fixed version: Red Hat Advanced Cluster Management for Kubernetes 2 2.0.5. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2020-25688 or the next vulnerability affects your stack