{"schema_version":"1.7.3","id":"GHSA-5vxx-c285-pcq4","published":"2025-04-21T16:17:49Z","modified":"2026-02-04T04:36:13.653824Z","aliases":["BIT-cilium-2025-32793","BIT-cilium-operator-2025-32793","BIT-hubble-relay-2025-32793","CVE-2025-32793","GO-2025-3635"],"related":["CGA-34g5-vr79-8947"],"summary":"In Cilium, packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters","details":"### Impact\n\nWhen using [Wireguard transparent encryption](https://docs.cilium.io/en/stable/security/network/encryption-wireguard/#encryption-wg) in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium.\n\n### Patches\n\nThis issue has been patched in https://github.com/cilium/cilium/pull/38592.\n\nThis issue affects:\n\n- Cilium v1.15 between v1.15.0 and v1.15.15 inclusive\n- Cilium v1.16 between v1.16.0 and v1.16.8 inclusive\n- Cilium v1.17 between v1.17.0 and v1.17.2 inclusive\n\nThis issue is fixed in:\n\n- Cilium v1.15.16\n- Cilium v1.16.9\n- Cilium v1.17.3\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 @gandro  and @pippolo84 for reporting this issue and to @julianwiedmann for the patch.\n\n### For more information\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.","affected":[{"package":{"name":"github.com/cilium/cilium","ecosystem":"Go","purl":"pkg:golang/github.com/cilium/cilium"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.13.0"},{"fixed":"1.15.16"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5vxx-c285-pcq4/GHSA-5vxx-c285-pcq4.json"}},{"package":{"name":"github.com/cilium/cilium","ecosystem":"Go","purl":"pkg:golang/github.com/cilium/cilium"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.16.0"},{"fixed":"1.16.9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5vxx-c285-pcq4/GHSA-5vxx-c285-pcq4.json"}},{"package":{"name":"github.com/cilium/cilium","ecosystem":"Go","purl":"pkg:golang/github.com/cilium/cilium"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.17.0"},{"fixed":"1.17.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5vxx-c285-pcq4/GHSA-5vxx-c285-pcq4.json"}}],"references":[{"type":"WEB","url":"https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32793"},{"type":"WEB","url":"https://github.com/cilium/cilium/pull/38592"},{"type":"WEB","url":"https://github.com/cilium/cilium/commit/e8543eef05126e9ba8a845dc74e96f4e30f6dba9"},{"type":"PACKAGE","url":"https://github.com/cilium/cilium"}],"database_specific":{"cwe_ids":["CWE-319","CWE-362"],"github_reviewed":true,"github_reviewed_at":"2025-04-21T16:17:49Z","nvd_published_at":"2025-04-21T16:15:54Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N"}]}