Threats Tagged 'cve-2026-58254'
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Threats Tagged 'cve-2026-58254'
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0 NATS Server versions prior to 2.14.3 and 2.12.8 have an incomplete fix for a permission check bypass in leaf node connections related to message trace destination. This allows a leafnode operator to send trace events to unauthorized subjects and potentially interfere with normal message delivery or storage. The issue is resolved in versions 2.14.3 and 2.12.8. Join the discussion | GCVE Database | 07/14/2026, 15:47:20 UTC Added: 07/16/2026, 10:37:17 UTC |
0 NATS Server versions prior to 2.14.3 and 2.12.12 contain a vulnerability where MQTT retained message delivery and QoS1+ durable replay can bypass subscribe deny filters. This occurs because these delivery paths do not consistently recheck the original topic against deny rules before sending messages to subscribers. The issue allows delivery of messages that should have been blocked by subscription deny rules. A fix is available in versions 2.14.3 and 2.12.12. Join the discussion | GCVE Database | 07/14/2026, 15:47:11 UTC Added: 07/16/2026, 10:37:22 UTC |
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.8, message trace destination checks were applied to ordinary client connections but not consistently to messages arriving through leafnode connections, allowing a leafnode operator to send trace events to subjects that would not otherwise be permitted and to use trace-only behavior to prevent normal delivery or storage of affected messages. This issue is fixed in versions 2.14.3 and 2.12.8. Join the discussion | CVE Database V5 | 07/08/2026, 19:56:58 UTC Added: 07/08/2026, 20:15:37 UTC |
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