CVE-2026-56742

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.

• CWE-862

• https://github.com/cilium/cilium/commit/7422068aff67ac77c7dcc57aa5b9240c91333debPatch
• https://github.com/cilium/cilium/commit/e0b1cef513ff910323f3743e9f3e3d86721e4857Patch
• https://github.com/cilium/cilium/commit/f23929cff682d6ed0dc158070812cb302fc0032bPatch
• https://github.com/cilium/cilium/commit/fd47963ea394d5e8fa4a88c40a79063430c512caPatch
• https://github.com/cilium/cilium/releases/tag/v1.17.17Release Notes
• https://github.com/cilium/cilium/releases/tag/v1.18.11Release Notes
• https://github.com/cilium/cilium/releases/tag/v1.19.5Release Notes
• https://github.com/cilium/cilium/security/advisories/GHSA-w7c2-w76w-5hmjVendor Advisory

Published

Jul 15, 2026

Last Modified

Jul 17, 2026

Status

Analyzed

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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