Auth bypass in 84codes Lavinmq
CVE-2026-25768
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- 84codes Lavinmq
- Cloudamqp Lavinmq — versions < 2.6.6
Weakness classification (CWE)
References
- github.com/cloudamqp/lavinmq/security/advisories/GHSA-r2mh-8vq6-qf7m (Vendor Advisory)
- github.com/cloudamqp/lavinmq/pull/1669 (Patch, Issue Tracking)
- github.com/cloudamqp/lavinmq/commit/e871f8d0a53685f04e39e6410a2421c1f82803b0 (Patch)
Frequently asked questions
- What is CVE-2026-25768?
- CVE-2026-25768 is a medium-severity vulnerability in 84codes Lavinmq, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-02-12.
- How severe is CVE-2026-25768?
- Medium severity. CVSS v3 base score is 6.5 out of 10.