CVE-2026-58208 (GCVE-0-2026-58208)
Vulnerability from cvelistv5
Published
2026-07-08 20:17
Modified
2026-07-09 14:04
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
Summary
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a WebSocket listener could route requests for the MQTT-over-WebSocket path into MQTT handling even when MQTT was not configured, allowing an unauthenticated client with access to the WebSocket listener to reach uninitialized MQTT state and crash the server process. This issue is fixed in versions 2.14.3 and 2.12.12.
References
Impacted products
Vendor Product Version
nats-io nats-server Version: >= 2.14.0-RC.1, < 2.14.3
Version: < 2.12.12
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