{"id":"CVE-2024-37307","aliases":["BIT-cilium-2024-37307","BIT-cilium-operator-2024-37307","BIT-cilium-proxy-2024-37307","BIT-hubble-2024-37307","BIT-hubble-relay-2024-37307","BIT-hubble-ui-2024-37307","BIT-hubble-ui-backend-2024-37307","GHSA-wh78-7948-358j","GO-2024-2922"],"url":"https://o3.security/vulnerability/CVE-2024-37307","summary":"Cilium leaks sensitive information in cilium-bugtool","details":"### Impact\n\nThe 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.\n\nUsers of the following features are affected:\n\n- [TLS inspection](https://docs.cilium.io/en/stable/security/tls-visibility/#gs-tls-inspection)\n- [Ingress with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/tls-termination/#gs-ingress-tls)\n- [Gateway API with TLS termination](https://docs.cilium.io/en/stable/network/servicemesh/gateway-api/https/)\n- [Kafka network policies with API key filtering](https://docs.cilium.io/en/stable/security/policy/language/#kafka-beta)\n\nThe sensitive data includes:\n\n- The CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API\n- The API keys used in Kafka-related network policy\n\n`cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster.\n\n### Patches\n\nThis issue affects:\n\n- Cilium v1.13 between v1.13.0 and v1.13.16 inclusive\n- Cilium v1.14 between v1.14.0 and v1.14.11 inclusive\n- Cilium v1.15 between v1.15.0 and v1.15.5 inclusive\n\nThis issue has been patched in:\n\n- Cilium v1.15.6\n- Cilium v1.14.12\n- Cilium v1.13.17\n\n### Workarounds\n\nThere is no workaround to this issue.\n\n### Acknowledgements\n\nThe Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @sayboras for their work on triaging and remediating this issue.\n\n### For more information\n\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 have found a vulnerability affecting Cilium, we strongly encourage you to report it to our security mailing list at [security@cilium.io](mailto:security@cilium.io). This is a private mailing list for the Cilium security team, and your report will be treated as top priority.","published":"2024-06-13T16:09:22.378Z","modified":"2026-08-12T03:51:26.014583150Z","cvss":{"score":7.9,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"},"epss":{"score":0.0018,"percentile":0.07789,"asOf":"2026-07-31"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/cilium/cilium","fixedVersion":"1.13.17"},{"ecosystem":"Go","name":"github.com/cilium/cilium","fixedVersion":"1.14.12"},{"ecosystem":"Go","name":"github.com/cilium/cilium","fixedVersion":"1.15.6"}],"fix":{"url":"https://github.com/cilium/cilium/commit/0191b1ebcfdd61cefd06da0315a0e7d504167407","label":"cilium/cilium@0191b1e"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/37xxx/CVE-2024-37307.json"},{"type":"ADVISORY","url":"https://github.com/cilium/cilium/security/advisories/GHSA-wh78-7948-358j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-37307"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/0191b1ebcfdd61cefd06da0315a0e7d504167407"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/224e288a5bf40d0bb0f16c9413693b319633431a"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/9299c0fd0024e33397cffc666ff851e82af28741"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/958d7b77274bf2c272d8cdfd812631d644250653"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/9eb25ba40391a9b035d7e66401b862818f4aac4b"},{"type":"FIX","url":"https://github.com/cilium/cilium/commit/bf9a1ae1b2d2b2c9cca329d7aa96aa4858032a61"},{"type":"PACKAGE","url":"https://github.com/cilium/cilium"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2024-2922"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.014583150Z"}}