Auth bypass in 84codes Lavinmq
CVE-2026-25767
LavinMQ is a high-performance message queue & streaming server. Before 2.6.8, an authenticated user, with the “Policymaker” tag, could create shovels bypassing access controls. an authenticated user with the "Policymaker" management tag could exploit it to read messages from vhosts they are not authorized to access or publish messages to vhosts they are not authorized to access. This vulnerability is fixed in 2.6.8.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- 84codes Lavinmq
- Cloudamqp Lavinmq — versions < 2.6.8
Weakness classification (CWE)
References
- github.com/cloudamqp/lavinmq/security/advisories/GHSA-wh37-6vrr-r9wg (Mitigation, Vendor Advisory)
- github.com/cloudamqp/lavinmq/pull/1670 (Patch, Issue Tracking)
- github.com/cloudamqp/lavinmq/pull/1687 (Patch, Issue Tracking)
- github.com/cloudamqp/lavinmq/commit/3a83e5894495b60c7c32a79c3dbc9bd9fa237d9a (Patch)
- github.com/cloudamqp/lavinmq/commit/be03da31f3db1a2552f7094ff58e953ef50cdc82 (Patch)
Frequently asked questions
- What is CVE-2026-25767?
- CVE-2026-25767 is a high-severity vulnerability in 84codes Lavinmq, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-02-12.
- How severe is CVE-2026-25767?
- High severity. CVSS v3 base score is 8.1 out of 10.