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BIT-cilium-2024-37307 — Cilium leaks sensitive information in cilium-bugtool

Affected: Bitnami: cilium

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.13.0 and prior to versions 1.13.7, 1.14.12, and 1.15.6, the output of `cilium-bugtool` can contain sensitive data when the tool is run (with the `--envoy-dump` flag set) against Cilium deployments with the Envoy proxy enabled. Users of the TLS inspection, Ingress with TLS termination, Gateway API with TLS termination, and Kafka network policies with API key filtering features are affected. The sensitive data includes the CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API and the API keys used in Kafka-related network policy. `cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster. This issue has been patched in Cilium v1.15.6, v1.14.12, and v1.13.17. There is no workaround to this issue.

EUVD-2026-159061

fkie_cve-2024-37307

GHSA-wh78-7948-358j — Cilium leaks sensitive information in cilium-bugtool

Affected: Go: github.com/cilium/cilium

### Impact

The output of `cilium-bugtool` can contain sensitive data when the tool is run (with the `--envoy-dump` flag set) against Cilium deployments with the Envoy proxy enabled.

Users of the following features are affected:

- [TLS inspection](https://docs.cilium.io/en/stable/security/tls-visibility/#gs-tls-inspection) - [Ingress with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/tls-termination/#gs-ingress-tls) - [Gateway API with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/gateway-api/https/) - [Kafka network policies with API key filtering](https://docs.cilium.io/en/stable/security/policy/language/#kafka-beta)

The sensitive data includes:

- The CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API - The API keys used in Kafka-related network policy

`cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster.

### Patches

This issue affects:

- Cilium v1.13 between v1.13.0 and v1.13.16 inclusive - Cilium v1.14 between v1.14.0 and v1.14.11 inclusive - Cilium v1.15 between v1.15.0 and v1.15.5 inclusive

This issue has been patched in:

- Cilium v1.15.6 - Cilium v1.14.12 - Cilium v1.13.17

### Workarounds

There is no workaround to this issue.

### Acknowledgements

The Cilium community has worked together with members of Isovalent to prepare these mitigations. Special tha…