CVE-2026-56742

CVE-2026-56742CVE-2026-56742

Description

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant authorization mechanism. Gateway API functionality is disabled by default. This issue is fixed in versions 1.17.17, 1.18.11, and 1.19.5.

Scoring

CVSS 5.9 ()
VectorCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
Last modified2026-07-15
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.