CVE-2026-25768 PUBLISHED

LavinMQ is missing vhost access control

Assigner: GitHub_M
Reserved: 05.02.2026 Published: 12.02.2026 Updated: 12.02.2026

LavinMQ is a high-performance message queue & streaming server. Before 2.6.6, an authenticated user could access metadata in the broker they should not have access to. This vulnerability is fixed in 2.6.6.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	cloudamqp
Product	lavinmq
Versions	Version < 2.6.6 is affected

References

https://github.com/cloudamqp/lavinmq/security/advisories/GHSA-r2mh-8vq6-qf7m
https://github.com/cloudamqp/lavinmq/pull/1669
https://github.com/cloudamqp/lavinmq/commit/e871f8d0a53685f04e39e6410a2421c1f82803b0

Problem Types

CWE-862: Missing Authorization CWE