MEDIUM 4.3 Microsoft
CVE-2026-58209
NATS Server: MQTT retained and QoS replay bypass subscribe deny filters
Microsoft Security Update 2026-Jul: NATS Server: MQTT retained and QoS replay bypass subscribe deny filters
Affected Products
- azl3 telegraf 1.31.0-23 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58209
- https://nvd.nist.gov/vuln/detail/CVE-2026-58209
This medium severity vulnerability with a CVSS score of 4.3 was published on 2026-07-14 via Microsoft. Affected: azl3 telegraf 1.31.0-23 on Azure Linux 3.0.
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