CVE-2026-46411
Medium
Description
FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.26.2, authorized clients have the ability to exceed the permitted over-commit of their write buffer and triggering an internal safe-guard exception. This exception was in a path that was not catchable, and therefore causes a server abort. This issue has been patched in version 1.26.2.
SeverityMedium
CVSS6.5
Exploit probability—
ProductFlashMQ
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-248CWE-248
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| halfgaar FlashMQ | < 1.26.2 | — |
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