{"id":"CVE-2024-28250","aliases":["BIT-cilium-2024-28250","BIT-cilium-operator-2024-28250","BIT-cilium-proxy-2024-28250","BIT-hubble-2024-28250","BIT-hubble-relay-2024-28250","BIT-hubble-ui-2024-28250","BIT-hubble-ui-backend-2024-28250","GHSA-v6q2-4qr3-5cw6","GO-2024-2657"],"url":"https://o3.security/vulnerability/CVE-2024-28250","summary":"Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies","details":"### Impact\n\nIn Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies:\n\n- Traffic that should be WireGuard-encrypted is sent unencrypted between a node's Envoy proxy and pods on other nodes.\n- Traffic that should be WireGuard-encrypted is sent unencrypted between a node's DNS proxy and pods on other nodes.\n\n### Patches\n\nThis issue affects:\n\n* In native routing mode (`routingMode=native`):\n  * Cilium v1.14 versions before v1.14.8\n  * Cilium v1.15 versions before v1.15.2\n* In tunneling mode (`routingMode=tunnel`):\n  * Cilium v1.14 versions before v1.14.4\n  * Cilium v1.14.4 if `encryption.wireguard.encapsulate` is set to `false` (default).\n\nThis issue has been resolved in:\n\n* In native routing mode (`routingMode=native`):\n  * Cilium v1.14.8\n  * Cilium v1.15.2\n* In tunneling mode (`routingMode=tunnel`):\n  * Cilium v1.14.4. **NOTE** `encryption.wireguard.encapsulate` must be set to `true`.\n   \n### Workarounds\n\nThere is no workaround to this issue.\n\n### Acknowledgements\nThe Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @brb, @giorio94, @gandro and @jschwinger233 for their work on triaging and remediating this issue.\n\n### For more information\nIf you have any questions or comments about this advisory, please reach out on [Slack](https://docs.cilium.io/en/latest/community/community/#slack).\n\nIf you think you found a related vulnerability, we strongly encourage you to report security vulnerabilities to our private security mailing list at [security@cilium.io](mailto:security@cilium.io). This is a private mailing list where only members of the Cilium internal security team are subscribed to, and your report will be treated as top priority.\n","published":"2024-03-18T21:42:21.689Z","modified":"2026-08-12T03:51:28.096442345Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/cilium/cilium","fixedVersion":"1.14.8"},{"ecosystem":"Go","name":"github.com/cilium/cilium","fixedVersion":"1.15.2"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/cilium/cilium/releases/tag/v1.13.13"},{"type":"WEB","url":"https://github.com/cilium/cilium/releases/tag/v1.14.8"},{"type":"WEB","url":"https://github.com/cilium/cilium/releases/tag/v1.15.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/28xxx/CVE-2024-28250.json"},{"type":"ADVISORY","url":"https://github.com/cilium/cilium/security/advisories/GHSA-v6q2-4qr3-5cw6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-28250"},{"type":"PACKAGE","url":"https://github.com/cilium/cilium"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:28.096442345Z"}}