CVE-2026-25887
📋 TL;DR
Chartbrew versions before 4.8.1 contain a remote code execution vulnerability in MongoDB dataset queries. Attackers can execute arbitrary code on the server by crafting malicious queries. This affects all Chartbrew deployments using MongoDB datasets that haven't been updated.
💻 Affected Systems
- Chartbrew
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise allowing data theft, lateral movement, ransomware deployment, and persistent backdoor installation.
Likely Case
Database compromise leading to data exfiltration, privilege escalation, and potential cryptocurrency mining malware installation.
If Mitigated
Limited impact due to network segmentation, minimal privileges, and proper input validation preventing successful exploitation.
🎯 Exploit Status
Exploitation requires authenticated access to Chartbrew with dataset query permissions. The vulnerability is in query parsing logic.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.8.1
Vendor Advisory: https://github.com/chartbrew/chartbrew/security/advisories/GHSA-x4r6-prmw-7wvw
Restart Required: Yes
Instructions:
1. Backup your Chartbrew data and configuration. 2. Update to version 4.8.1 using your deployment method (Docker, manual, etc.). 3. Restart the Chartbrew service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Disable MongoDB datasets
allTemporarily disable MongoDB dataset functionality until patching is possible
Restrict user permissions
allLimit dataset query permissions to trusted users only
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Chartbrew from critical systems
- Deploy web application firewall with RCE detection rules
🔍 How to Verify
Check if Vulnerable:
Check Chartbrew version in admin panel or via package manager. If version is below 4.8.1 and MongoDB datasets are enabled, system is vulnerable.Check Version:
docker exec chartbrew_app cat package.json | grep versionVerify Fix Applied:
Confirm version is 4.8.1 or higher in admin panel. Test MongoDB dataset queries to ensure they function without errors.📡 Detection & Monitoring
Log Indicators:
- Unusual MongoDB query patterns
- System command execution in logs
- Multiple failed query attempts
Network Indicators:
- Unexpected outbound connections from Chartbrew server
- Traffic to suspicious IPs/domains
SIEM Query:
source="chartbrew" AND ("mongodb" OR "query") AND ("exec" OR "system" OR "cmd")