CVE-2026-33726
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
Description
Cilium L7 proxy may bypass Kubernetes NetworkPolicy for same-node traffic in github.com/cilium/cilium
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/cilium/cilium | <1.17.14 | 1.17.14 |
| Go | github.com/cilium/cilium | >=1.18.0,<1.18.8 | 1.18.8 |
| Go | github.com/cilium/cilium | >=1.19.0,<1.19.2 | 1.19.2 |
References
- https://github.com/cilium/cilium/security/advisories/GHSA-hxv8-4j4r-cqgv
- https://nvd.nist.gov/vuln/detail/CVE-2026-33726
- https://github.com/cilium/cilium/pull/44693
- https://docs.cilium.io/en/stable/network/concepts/routing/#routing
- https://docs.cilium.io/en/stable/network/kubernetes/policy/#network-policy
- https://docs.cilium.io/en/stable/network/servicemesh/l7-traffic-management
- https://docs.cilium.io/en/stable/operations/performance/tuning/#ebpf-host-routing
- https://github.com/cilium/cilium
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.