https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T19:18:52.629841+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bit-cilium-2026-41520 BIT-cilium-2026-41520 — Cillium exposes sensitive information included in the cilium-bugtool debug archive 2026-10-06T19:18:52.681334+00:00

Affected: Bitnami: cilium

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 patched in versions 1.17.15, 1.18.9, and 1.19.3.

 https://cve.radiocsirt.org/vuln/euvd-2026-318201 EUVD-2026-318201 2026-10-06T19:18:52.681394+00:00 EUVD-2026-318201 https://cve.radiocsirt.org/vuln/fkie_cve-2026-41520 fkie_cve-2026-41520 2026-10-06T19:18:52.681411+00:00

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 patched in versions 1.17.15, 1.18.9, and 1.19.3.

 https://cve.radiocsirt.org/vuln/ghsa-gj49-89wh-h4gj GHSA-gj49-89wh-h4gj — Cillium exposes sensitive information included in the cilium-bugtool debug archive 2026-10-06T19:18:52.681435+00:00

Affected: Go: github.com/cilium/cilium

### Impact The output of `cilium-bugtool` can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled.

Users of [WireGuard Transparent Encryption](https://docs.cilium.io/en/stable/security/network/encryption-wireguard/) are affected. The sensitive data is the WireGuard private key (`cilium_wg0.key`) used for node-to-node encrypted communication

`cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster. It is also invoked when gathering sysdumps using the Cilium CLI's `cilium sysdump` command.

### Patches This issue affects:

- Cilium v1.19 between v1.19.0 and v1.19.2 inclusive - Cilium v1.18 between v1.18.0 and v1.18.8 inclusive - All versions of Cilium prior to v1.17.15

This issue has been patched in:

- Cilium v1.19.3 - Cilium v1.18.9 - Cilium v1.17.15

### Workarounds There is no workaround to this issue.

Users who have previously shared bugtool or sysdump archives from WireGuard-enabled nodes should rotate the WireGuard keys on the affected nodes. This can be done by deleting the key file and restarting the Cilium agent, which will generate a new key pair.

### Acknowledgements

The Cilium community has worked together with members of Isovalent to prepare these mitigations. Cillium extends special thanks to @kodareef5 for reporting the issue and @tklauser for their work on triaging and remediating this issue.

### For more information…