SB2025111923 - Astronomer with IBM update for Kubernetes NodeRestriction
Published: November 19, 2025
Security Bulletin ID
SB2025111923
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authorization (CVE-ID: CVE-2025-4563)
The vulnerability allows a malicious node to bypass dynamic resource allocation authorization checks.
The vulnerability exists due to missing authorization checks in DynamicResourceAllocation feature gate within the NodeRestriction admission controller. A malicious node can create mirror pods that access unauthorized dynamic resources, leading to denial of service or potential privilege escalation.
Remediation
Install update from vendor's website.