cvedb.io
CVE-2026-56742
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2026-07-15T20:17:51.850 · Last modified 2026-07-15T20:54:43.733

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.