BIT-CILIUM-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

CVE-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

SUSE CVE-2026-33726

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.14, 1.18.8, and 1.19.2, Ingress Network Policies are not enforced for traffic from pods to L7 Services Envoy, GAMMA with a local backend on the same node, when Per-Endpoint Routing is...

CVE-2025-23028

Cilium DoS (CVE-2025-23028): A crafted DNS response can crash Cilium agents in clusters proxying DNS traffic, affecting versions 1.14.0–1.14.7, 1.15.0–1.15.11, and 1.16.0–1.16.4. Impact varies by DNS policy: traffic allowed without DNS-based policy continues; DNS-policyed connections may be disru...

Cilium 安全漏洞

Cilium is an open source software from Cilium Open Source. It is used to provide and transparently protect network connectivity and load balancing between application workloads such as application containers or processes. A security vulnerability exists in Cilium versions prior to 1.14.14 and...

BIT-HUBBLE-UI-BACKEND-2023-39347

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to update pod labels can cause Cilium to apply incorrect network policies. This issue arises due to the fact that on pod update, Cilium incorrectly uses user-provided pod labels...

BIT-HUBBLE-UI-BACKEND-2023-41332

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 or io.cilium.proxy-visibility annotations in Cilium...

Unencrypted traffic between nodes when using WireGuard and L7 policies

Impact In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies: - Traffic that should be WireGuard-encrypted is sent unencrypted between a node's Envoy proxy and pods on other nodes. - Traffic that should be WireGuard-encrypted is sent unencrypted between a node's DNS prox...

PT-2024-21050 · Cilium · Cilium

Name of the Vulnerable Software and Affected Versions: Cilium versions 1.14 through 1.14.6 Description: The issue affects Cilium users who are using CRDs to store Cilium state and Wireguard transparent encryption. Traffic to and from the Ingress and health endpoints is not encrypted. This issue...

PT-2023-27909 · Cilium · Cilium

Name of the Vulnerable Software and Affected Versions: Cilium versions prior to 1.14.2 Cilium versions prior to 1.13.7 Cilium versions prior to 1.12.14 Description: In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility...

GHSA-FMRF-GVJP-5J5G Improper Privilege Management in Cilium

Impact If an attacker is able to perform a container escape of a container running as root on a host where Cilium is installed, the attacker can leverage Cilium's Kubernetes service account to gain access to cluster privileges that are more permissive than what is minimally required to operate...