What’s Vulnerable › Vulnerabilities

CVE-2024-25631: Unencrypted traffic between pods when using Wireguard and an external kvstore

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-20 · updated 2026-06-17
• Weakness: CWE-311

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. For Cilium users who have enabled an external kvstore and Wireguard transparent encryption, traffic between pods in the affected cluster is not encrypted. This issue affects Cilium v1.14 before v1.14.7 and has been patched in Cilium v1.14.7. There is no workaround to this issue.

Affected products

• cilium: from 1.14.0 before 1.14.7 — fixed in 1.14.7

How to fix

Upgrade to a fixed version: cilium 1.14.7. Check the vendor advisory for mitigations.

References

• https://docs.cilium.io/en/stable/installation/k8s-install-external-etcd/#when-do-i-need-to-use-a-kvstore
• https://docs.cilium.io/en/stable/security/network/encryption-wireguard/#encryption-wg
• https://github.com/cilium/cilium/releases/tag/v1.14.7
• https://github.com/cilium/cilium/security/advisories/GHSA-x989-52fc-4vr4
• https://docs.cilium.io/en/stable/installation/k8s-install-external-etcd/#when-do-i-need-to-use-a-kvstore
• https://docs.cilium.io/en/stable/security/network/encryption-wireguard/#encryption-wg
• https://github.com/cilium/cilium/releases/tag/v1.14.7
• https://github.com/cilium/cilium/security/advisories/GHSA-x989-52fc-4vr4

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