CVE-2026-46411

EUVD-2026-35872
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
Common Weakness Enumeration
References
https://github.com/halfgaar/FlashMQ/commit/29e08f7b97b6e3f96db923c2b6a260c47b49c195
https://github.com/halfgaar/FlashMQ/releases/tag/v1.26.2
https://github.com/halfgaar/FlashMQ/security/advisories/GHSA-g35r-265r-rxrh