Missing Authentication for Critical Function The advisory has been revoked - it doesn't affect any version of package cilium-1.14  (opens in a new tab)


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EPSS
0.48% (40th percentile)

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  • Snyk IDSNYK-WOLFILATEST-CILIUM114-15377393
  • published4 Mar 2026
  • disclosed27 Sept 2023

Introduced: 27 Sep 2023

CVE-2023-41333  (opens in a new tab)
CWE-306  (opens in a new tab)

Amendment

The Wolfi security team deemed this advisory irrelevant for Wolfi:latest.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cilium-1.14 package and not the cilium-1.14 package as distributed by Wolfi.

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to create or modify CiliumNetworkPolicy objects in a particular namespace is able to affect traffic on an entire Cilium cluster, potentially bypassing policy enforcement in other namespaces. By using a crafted endpointSelector that uses the DoesNotExist operator on the reserved:init label, the attacker can create policies that bypass namespace restrictions and affect the entire Cilium cluster. This includes potentially allowing or denying all traffic. This attack requires API server access, as described in the Kubernetes API Server Attacker section of the Cilium Threat Model. This issue has been resolved in Cilium versions 1.14.2, 1.13.7, and 1.12.14. As a workaround an admission webhook can be used to prevent the use of endpointSelectors that use the DoesNotExist operator on the reserved:init label in CiliumNetworkPolicies.