CVE-2026-24457

9.1 CRITICAL

📋 TL;DR

CVE-2026-24457 is a path traversal vulnerability in OpenMQ's configuration parsing that allows remote attackers to read arbitrary files from the MQ Broker server. This could lead to unauthorized file access on the host operating system and potentially remote code execution. Organizations using vulnerable OpenMQ versions are affected.

💻 Affected Systems

Products:
  • OpenMQ Message Broker
Versions: Specific versions not yet published in advisory
Operating Systems: All operating systems running OpenMQ
Default Config Vulnerable: ⚠️ Yes
Notes: All OpenMQ installations with default configuration are vulnerable. The vulnerability exists in configuration parsing logic.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise, data exfiltration, and lateral movement within the network.

🟠

Likely Case

Unauthorized reading of sensitive configuration files, credentials, and system files from the OpenMQ host.

🟢

If Mitigated

Limited impact with proper network segmentation, file system permissions, and monitoring in place.

🌐 Internet-Facing: HIGH - Remote attackers can exploit this without authentication to access sensitive files.
🏢 Internal Only: HIGH - Even internally, this provides significant privilege escalation and data access capabilities.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Based on CWE-22 (Path Traversal) and the description, exploitation appears straightforward for reading files. RCE may require additional conditions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not yet released

Vendor Advisory: https://gitlab.eclipse.org/security/cve-assignment/-/issues/84

Restart Required: Yes

Instructions:

1. Monitor the Eclipse security advisory for patch release. 2. Apply the official patch when available. 3. Restart OpenMQ services after patching.

🔧 Temporary Workarounds

Network Access Restriction

all

Restrict network access to OpenMQ broker to only trusted IP addresses and networks

Use firewall rules to limit access (e.g., iptables -A INPUT -p tcp --dport 7676 -s trusted_network -j ACCEPT)

File System Permissions Hardening

linux

Restrict file system permissions for OpenMQ process to minimize impact of file reads

chmod 750 /path/to/openmq/config
chown mquser:mqgroup /path/to/openmq

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate OpenMQ instances from sensitive systems
  • Deploy file integrity monitoring and intrusion detection systems to detect exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check OpenMQ version against the vulnerable range once published in the official advisory

Check Version:

Check OpenMQ documentation for version command (typically in logs or administration interface)

Verify Fix Applied:

Verify patch installation by checking version number matches or exceeds the fixed version

📡 Detection & Monitoring

Log Indicators:

  • Unusual file access patterns in OpenMQ logs
  • Configuration parsing errors
  • Access to files outside OpenMQ directories

Network Indicators:

  • Unusual traffic patterns to OpenMQ configuration endpoints
  • Requests with path traversal patterns (../)

SIEM Query:

source="openmq.logs" AND (message="*../*" OR message="*path traversal*")

🔗 References

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