CVE-2026-32682
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Authenticated GRPCRoute Misconfiguration Leading to NGINX Gateway Fabric Control Plane Termination

Publication date: 2026-06-17

Last updated on: 2026-06-17

Assigner: F5 Networks

Description
When NGINX Gateway Fabric is configured using GRPCRoutes, an authenticated, remote attacker with permission to create or modify GRPCRoute resources can cause the NGINX Gateway Fabric control plane to terminate by sending undisclosed GRPCRoute configurations containing backendRef filters. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
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Meta Information
Published
2026-06-17
Last Modified
2026-06-17
Generated
2026-06-18
AI Q&A
2026-06-18
EPSS Evaluated
N/A
NVD
CVE-2026-32682
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-129 The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.
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Executive Summary

This vulnerability occurs in NGINX Gateway Fabric when it is configured using GRPCRoutes. An authenticated remote attacker who has permission to create or modify GRPCRoute resources can exploit this issue by sending specially crafted GRPCRoute configurations that include backendRef filters. This causes the NGINX Gateway Fabric control plane to terminate unexpectedly.

Impact Analysis

The impact of this vulnerability is that an attacker with certain permissions can cause the NGINX Gateway Fabric control plane to terminate. This termination can disrupt the normal operation of the gateway fabric, potentially leading to denial of service or interruption of services relying on the control plane.

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