Mmastodon TechnologyCybersecurity first seen 1 h ago, last 1 h ago, peak #2

Moderate authentication bypass flaw disclosed in Red Hat maestro gRPC broker

Original: CVE-2026-71297 is a moderate authentication bypass in the maestro gRPC broker used by Red Hat Advanced Cluster Managemen

CVE-2026-71297 describes a moderate authentication bypass in the maestro gRPC broker used by Red Hat Advanced Cluster Management and the Multicluster Engine. An attacker holding a valid client certificate could read other consumers' event streams or forge agent status reports. Security trackers and infosec communities are circulating the disclosure, with no confirmed exploitation reported so far.

Why now: A newly disclosed CVE affecting widely deployed Red Hat cluster management tools is being circulated among security professionals.

Red HatRed Hat Advanced Cluster ManagementMulticluster Enginemaestro gRPC brokerCVE-2026-71297

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Evidence

• CVE-2026-71297 is a moderate authentication bypass in the maestro gRPC broker used by Red Hat Advanced Cluster Management and Multicluster Engine. An attacker with a valid client certificate can read other consumers' event streams or forge agent status. No exploitation is… · suriq@infosec.exchange · 1

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