VDB
CVE-2026-33726
CVE-2026-33726
PUBLISHED
CVSS 4.300000190734863 MEDIUM
Cilium L7 proxy may bypass Kubernetes NetworkPolicy for same-node traffic
EPSS 0.01% · 1.4th percentile
Risk Scores
CVSS 3.1
4.300000190734863
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score
0.01%
1.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | hubble-relay | 0, 1.18.0, 1.19.0 |
| Bitnami | cilium | 0, 1.19.0, 1.18.0 |
| Bitnami | cilium-operator | 0, 1.18.0, 1.19.0 |
Exploit Intelligence
- https://github.com/cilium/cilium/security/advisories/GHSA-hxv8-4j4r-cqgv (circl)
- https://github.com/cilium/cilium/pull/44693 (circl)
- https://docs.cilium.io/en/stable/network/concepts/routing/#routing (circl)
- https://docs.cilium.io/en/stable/network/kubernetes/policy/#network-policy (circl)
- https://docs.cilium.io/en/stable/network/servicemesh/l7-traffic-management (circl)
- https://docs.cilium.io/en/stable/operations/performance/tuning/#ebpf-host-routing (circl)
- CVE-2026-33726.yml (github-poc)
- CVE-2026-33726.yml (github-poc)
- CVE-2026-33726.yml (github-poc)
- CVE-2026-33726.yml (github-poc)
…and 4 more exploits
Timeline
- Mar 24, 2026 CVE Published
- Mar 27, 2026 Coalition ESS Score
- Mar 27, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score
References
- https://docs.cilium.io/en/stable/network/concepts/routing/#routing url
- https://docs.cilium.io/en/stable/network/kubernetes/policy/#network-policy url
- https://docs.cilium.io/en/stable/network/servicemesh/l7-traffic-management url
- https://docs.cilium.io/en/stable/operations/performance/tuning/#ebpf-host-routing url
- https://github.com/cilium/cilium/pull/44693 url
- https://github.com/cilium/cilium/security/advisories/GHSA-hxv8-4j4r-cqgv url
- https://nvd.nist.gov/vuln/detail/CVE-2026-33726 url