CVE-2026-22886: eclipse foundation eclipse openmq Use of Weak Credentials

Vulnerability summary

CVE-2026-22886 is a critical (CVSS 9.8) Use of Weak Credentials vulnerability in eclipse foundation eclipse openmq. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.6% of scored vulnerabilities.

Timeline

1. 03-03-2026
   PublishedVulnerability first disclosed.
2. 03-03-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-1391Use of Weak CredentialsThe product uses weak credentials (such as a default key or hard-coded password) that can be calculated, derived, reused, or guessed by an attacker.
• CWE-1392Use of Default CredentialsThe product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality.
• CWE-1393Use of Default PasswordThe product uses default passwords for potentially critical functionality.