CVE-2026-46411
FlashMQ: Client can trigger uncaught exception on FlashMQ 1.26.1 and older
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-248 |
| Vendor | halfgaar |
| Product | flashmq |
| Published | Jun 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
halfgaar / FlashMQ
< 1.26.2