CVE-2026-56742EPSS p6.0%

CVE-2026-56742CVE-2026-56742

cilium / cilium

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
EPSS0.17% probability of exploitation · percentile 6.0% · 2026-10-05T12:00:23Z
Last modified2026-07-17
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.