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CVE PROGRAM SOURCE RECORD6.1 Medium

CVE-2026-26963

Cilium may not enforce host firewall policies when Native Routing, WireGuard and Node Encryption are enabled

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.18.0 through 1.18.5 will incorrectly permit traffic from Pods on other nodes when Native Routing, WireGuard and Node Encryption are enabled. This issue has been fixed in version 1.18.6.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

cilium cilium

  • >= 1.18.0, < 1.18.6affected

References