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VulnerabilityPublished

CVE-2026-22886: Eclipse OpenMQ · Use of Default Credentials

Affects Eclipse OpenMQSource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Contested

Critical score, yet low EPSS after six months
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Eclipse FoundationEclipse OpenMQAffected
  • =0
Fixed in–
GitHubEclipse OpenMQpkg:github/Eclipse OpenMQOther threatsAffected
  • =0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2026-22886, organizations should immediately audit their Eclipse OpenMQ deployments to identify if the imqbrokerd management service is enabled and accessible over the network. If the service is not required, it should be disabled entirely to eliminate the attack surface. For deployments requiring management access, the default administrative credentials must be changed immediately to a strong, unique password. Since the product does not enforce password changes, manual intervention is necessary. Network-level controls such as firewall rules or VPNs should restrict access to the management service port to trusted administrators only. Additionally, organizations should implement monitoring and alerting for unusual authentication attempts or administrative actions on the broker. Regular vulnerability scanning and configuration reviews should be conducted to ensure no default credentials remain in use. Finally, organizations should track vendor updates and apply patches or configuration changes once available to address this vulnerability at the software level.

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.

References

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