6.1

CVE-2026-26963

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cilium ≫ Cilium Version >= 1.18.0 < 1.18.6
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.026
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.4 2.8 2.5
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
security-advisories@github.com 6.1 2.8 2.7
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://github.com/cilium/cilium/security/advisories/GHSA-5r23-prx4-mqg3
Patch
Vendor Advisory
https://github.com/cilium/cilium/pull/42892
Issue Tracking
https://github.com/cilium/cilium/commit/88e28e1e62c0b1a02c3f0fc22d888ac9eefbe885
Patch
https://github.com/cilium/cilium/releases/tag/v1.18.6
Release Notes