Access Control Bypass Affecting github.com/cilium/cilium/pkg/k8s/apis/cilium.io/utils package, versions >=1.17.0 <1.17.2>=1.16.0 <1.16.8
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- published26 Mar 2025
- disclosed24 Mar 2025
- creditoblazek
Introduced: 24 Mar 2025
NewCVE-2025-30163 (opens in a new tab)How to fix?
Upgrade github.com/cilium/cilium/pkg/k8s/apis/cilium.io/utils to version 1.17.2, 1.16.8 or higher.
Overview
Affected versions of this package are vulnerable to Access Control Bypass due to the misconfiguration in the fromNodes and toNodes fields. By exploiting the label mismatches, an attacker can bypass network policies and access unauthorized network endpoints.
Note: This is only exploitable if the node-based network policy is enabled, as it is disabled by default.
Workaround
This vulnerability can be mitigated by ensuring that the labels used in fromNodes and toNodes fields are used exclusively by nodes and not by other endpoints.