{"id":"BIT-cilium-operator-2023-30851","summary":"Potential HTTP policy bypass when using header rules in Cilium","details":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2.","aliases":["BIT-cilium-2023-30851","BIT-cilium-proxy-2023-30851","BIT-hubble-2023-30851","BIT-hubble-relay-2023-30851","BIT-hubble-ui-2023-30851","BIT-hubble-ui-backend-2023-30851","CVE-2023-30851","GHSA-2h44-x2wx-49f4","GO-2023-1785"],"modified":"2026-09-08T08:45:52.830377483Z","published":"2024-05-15T12:07:22.476Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*"]},"references":[{"type":"ARTICLE","url":"https://github.com/cilium/cilium/releases/tag/v1.11.16"},{"type":"ARTICLE","url":"https://github.com/cilium/cilium/releases/tag/v1.12.9"},{"type":"ARTICLE","url":"https://github.com/cilium/cilium/releases/tag/v1.13.2"},{"type":"ADVISORY","url":"https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30851"}],"affected":[{"package":{"name":"cilium-operator","ecosystem":"Bitnami","purl":"pkg:bitnami/cilium-operator"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.11.16"},{"introduced":"1.12.0"},{"fixed":"1.12.9"},{"introduced":"1.13.0"},{"fixed":"1.13.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/cilium-operator/BIT-cilium-operator-2023-30851.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}],"schema_version":"1.9.0"}