What is CVE-2026-58208?

CVE-2026-58208 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. NATS Server: MQTT-over-WebSocket Path Can Crash WebSocket-Only JetStream Servers Before MQTT Is Enabled

Which CVE IDs does CVE-2026-58208 cover?

CVE-2026-58208 covers the following CVE IDs: CVE-2026-58208. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-58208?

CVE-2026-58208 has a CVSS v3 base score of 6.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-58208?

CVE-2026-58208 affects 1 product, including: azl3 telegraf 1.31.0-23 on Azure Linux 3.0.

CVE-2026-58208MediumCVSS 6.8

NATS Server: MQTT-over-WebSocket Path Can Crash WebSocket-Only JetStream Servers Before MQTT Is Enabled

Vendor

Microsoft Security Response Center (MSRC)

Published

July 11, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-58208 →

🎯 Affected products1

azl3 telegraf 1.31.0-23 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.31.0-24

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58208
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade