Vulnerability · Published Apr 19, 2026 · Assigned by VulDB

CVE-2026-6564EMQ EMQX Enterprise Session Handling improper authorization

Medium 4.3

In plain English

A medium-severity security flaw in EMQX Enterprise from EMQ. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 73.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in EMQ EMQX Enterprise up to 6.1.0. The impacted element is an unknown function of the component Session Handling. The manipulation results in improper authorization. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
EMQ	EMQX Enterprise	6.06.1.0

Weakness: CWE-285, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

References

VDB-358201 | EMQ EMQX Enterprise Session Handling improper authorization vdb-entry
VDB-358201 | CTI Indicators (IOB, IOC, TTP) signature, permissions-required
Submit #789924 | EMQ Technologies Inc. EMQX Enterprise 6.1.0 Improper Access Control third-party-advisory
https://github.com/cailiujia/CVE exploit