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CVE-2026-21888

🗓️ 26 Mar 2026 15:04:20Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 1 Views

NanoMQ versions 0.24.6 and earlier have MQTT v5 varint parsing out of bounds causing read crashes.

Related
Refs
ReporterTitlePublishedViews
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CVE-2026-21888
11 Mar 202615:22
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CVE-2026-21888
11 Mar 202615:16
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CVE-2026-21888 MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()
11 Mar 202615:22
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11 Mar 202615:22
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CVE-2026-21888
11 Mar 202616:16
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OSV
CVE-2026-21888 MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()
11 Mar 202615:22
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Positive Technologies
PT-2026-24697
11 Mar 202600:00
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Vulnrichment
CVE-2026-21888 MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()
11 Mar 202615:22
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26 Mar 2026 15:04Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.00097
SSVC
1