Detections
Analytics
CVE-2026-53935
medium
Description
Cilium is a networking, observability, and security solution. Prior to 1.17.16, from 1.18.2 to 1.18.9, and from 1.19.0 to 1.19.3, users with the ability to create CiliumLocalRedirectPolicies can specify arbitrary ClusterIPs via addressMatcher, enabling hijacking traffic to Services in any namespace and bypassing namespace scoping enforced by serviceMatcher; deleting such a policy can also corrupt Cilium internal service state and stop service translation for the affected Service. This issue is fixed in versions 1.17.16, 1.18.10, and 1.19.4.
References
https://github.com/cilium/cilium/security/advisories/GHSA-q6h5-q3q6-f87x
https://github.com/cilium/cilium/pull/45585
https://github.com/cilium/cilium/pull/45584
https://github.com/cilium/cilium/pull/45412
https://github.com/cilium/cilium/commit/fe7eb53c7aac9fa7ec610b1975d73fbbb198c66d
https://github.com/cilium/cilium/commit/92ca32eda85aa0c7611c28221cc26fa08be17ebc
https://github.com/cilium/cilium/commit/81d446395673dc2c684c047c12715caffac1a351