MEDIUM 5.9 Microsoft

CVE-2026-27571

nats-server websockets are vulnerable to pre-auth memory DoS

Microsoft Security Update 2026-Feb: nats-server websockets are vulnerable to pre-auth memory DoS

Affected Products

cbl2 telegraf 1.29.4-18 on CBL Mariner 2.0
azl3 telegraf 1.31.0-12 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27571
https://nvd.nist.gov/vuln/detail/CVE-2026-27571

Published: 2026-02-10 · Source: Microsoft · Feed updated: 2026-08-20

This medium severity vulnerability with a CVSS score of 5.9 was published on 2026-02-10 via Microsoft. Affected: cbl2 telegraf 1.29.4-18 on CBL Mariner 2.0, azl3 telegraf 1.31.0-12 on Azure Linux 3.0.

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