nats-server: NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system
CVE-2026-58213 is fixed in nats-server on 1 platform by DEBIAN-CVE-2026-58213 (version 2.14.1-1), released July 4, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| nats-server · Debian 14 | 2.14.1-1 | DEBIAN-CVE-2026-58213 | Jul 4, 2026 |
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