Vulnerability in Eclipse Openmq
CVE-2026-22886
OpenMQ exposes a TCP-based management service (imqbrokerd) that by default requires authentication. However, the product ships with a default administrative account (admin/ admin) and does not enforce a mandatory password change on first use. After the first successful login, the server continues to accept the default password indefinitely without warning or enforcement. In real-world deployments, this service is often left enabled without changing the default credentials. As a result, a remote attacker with access to the service port could authenticate as an administrator and gain full control of the protocol’s administrative features.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Eclipse Openmq
- Eclipse Foundation Openmq — versions 0
Weakness classification (CWE)
References
- gitlab.eclipse.org/security/cve-assignment/-/issues/85 (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-22886?
- CVE-2026-22886 is a critical-severity vulnerability in Eclipse Openmq, classified under CWE-1391. CVSS score: 9.8/10. Published 2026-03-03.
- How severe is CVE-2026-22886?
- Critical severity. CVSS v3 base score is 9.8 out of 10.