Security Advisory

CVE-2026-58213

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-08 19:52:12

Last updated 2026-07-09 13:33:07

Assigner GitHub_M

CVSS score 7.1

State PUBLISHED

Description

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupting the forwarded protocol stream and allowing injection of unintended NATS protocol operations. This issue is fixed in versions 2.14.1 and 2.12.9.

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