Bug 2441217 (CVE-2026-26963) - CVE-2026-26963 cilium: Cilium: Information disclosure via incorrect traffic permitting with specific network configurations
Summary: CVE-2026-26963 cilium: Cilium: Information disclosure via incorrect traffic p...
Keywords:
Status: NEW
Alias: CVE-2026-26963
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-20 00:02 UTC by OSIDB Bzimport
Modified: 2026-02-20 10:37 UTC (History)
15 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-02-20 00:02:13 UTC 
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.
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