{"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","EUVD-2024-1011","GHSA-v6q2-4qr3-5cw6","GO-2024-2657"],"status":"published","title":"Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00172,"percentile":0.06632,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-311","CWE-319"],"published":"2024-03-18T20:33:32Z","modified":"2026-10-28T02:30:43Z","fixes":[{"ecosystem":"Go","package":"github.com/cilium/cilium","fixed_in":["1.14.8","1.15.2"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"cilium","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"cilium-operator","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"cilium-proxy","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"hubble","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"hubble-relay","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"hubble-ui","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"hubble-ui-backend","fixed_in":["1.14.8","1.15.2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/cilium/cilium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/cilium/cilium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"cilium","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"cilium-operator","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"cilium-proxy","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"hubble","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"hubble-relay","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"hubble-ui","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"hubble-ui-backend","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/cilium/cilium","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/cilium/cilium","ranges":[{"type":"SEMVER","events":[{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/cilium/cilium","ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.8"},{"introduced":"1.15.0"},{"fixed":"1.15.2"}]}]}],"products":[{"vendor":"cilium","product":"cilium"}],"references":[{"url":"https://github.com/cilium/cilium/security/advisories/GHSA-v6q2-4qr3-5cw6","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web","advisory"]},{"url":"https://github.com/cilium/cilium/releases/tag/v1.13.13","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://github.com/cilium/cilium/releases/tag/v1.14.8","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://github.com/cilium/cilium/releases/tag/v1.15.2","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-28250","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-v6q2-4qr3-5cw6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/28xxx/CVE-2024-28250.json","tags":["advisory"]},{"url":"https://github.com/cilium/cilium","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-28250","title":"Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-03-18T21:42:21.689Z","modified":"2024-08-02T00:48:49.605Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-311"],"updated_at":"2026-11-02T14:34:18.597034Z"}],"euvd":[{"id":"EUVD-2024-1011","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-03-18T21:42:21Z","modified":"2024-08-02T00:48:49Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T03:50:26.752963Z"}],"ghsa":[{"id":"GHSA-v6q2-4qr3-5cw6","title":"Unencrypted traffic between nodes when using WireGuard and L7 policies","description":"### 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","status":"published","published":"2024-03-18T20:33:32Z","modified":"2025-01-09T18:52:42Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-311","CWE-319"],"updated_at":"2026-11-02T14:38:27.067633Z"}],"nvd":[{"id":"CVE-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-03-18T22:15:08.75Z","modified":"2026-06-17T07:21:15.897Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-311","CWE-319"],"updated_at":"2026-11-02T14:09:41.654534Z"}],"osv":[{"id":"CVE-2024-28250","title":"Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-03-18T21:42:21.689Z","modified":"2026-10-28T02:30:43.027921326Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-311"],"updated_at":"2026-11-02T15:44:39.569658Z"},{"id":"GHSA-v6q2-4qr3-5cw6","title":"Unencrypted traffic between nodes when using WireGuard and L7 policies","description":"### 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","status":"published","published":"2024-03-18T20:33:32Z","modified":"2026-09-10T03:50:10.846938875Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-311","CWE-319"],"updated_at":"2026-11-02T15:46:56.981655Z"},{"id":"BIT-cilium-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-05-15T12:05:16.574Z","modified":"2024-07-18T07:56:34.499Z","updated_at":"2026-11-02T15:28:28.70813Z"},{"id":"BIT-cilium-operator-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-05-15T12:05:15.678Z","modified":"2024-07-18T07:56:34.499Z","updated_at":"2026-11-02T15:28:28.70813Z"},{"id":"BIT-cilium-proxy-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-07-01T11:10:31.998Z","modified":"2024-07-01T12:27:18.994407Z","updated_at":"2026-11-02T15:28:28.70813Z"},{"id":"BIT-hubble-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-06-04T09:42:36.406Z","modified":"2024-07-01T12:27:18.994407Z","updated_at":"2026-11-02T15:28:31.02759Z"},{"id":"BIT-hubble-relay-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-05-24T19:20:39.279Z","modified":"2024-07-18T07:56:34.499Z","updated_at":"2026-11-02T15:28:31.02759Z"},{"id":"BIT-hubble-ui-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-07-01T11:15:26.803Z","modified":"2024-07-01T12:27:18.994407Z","updated_at":"2026-11-02T15:28:31.02759Z"},{"id":"BIT-hubble-ui-backend-2024-28250","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.","status":"published","published":"2024-07-01T11:15:21.714Z","modified":"2024-07-01T12:27:18.994407Z","updated_at":"2026-11-02T15:28:31.02759Z"},{"id":"GO-2024-2657","title":"Unencrypted traffic between nodes with WireGuard in github.com/cilium/cilium","description":"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, and traffic that should be WireGuard-encrypted is sent unencrypted between a node's DNS proxy and pods on other nodes.","status":"published","published":"2024-03-22T18:38:17Z","modified":"2026-02-04T04:36:29.585552Z","updated_at":"2026-11-02T15:47:01.453823Z"}]}}