CVE-2026-3053
📋 TL;DR
This CVE describes an authentication bypass vulnerability in DataLinkDC Dinky's OpenAPI endpoint. Attackers can remotely exploit this to access administrative functions without credentials. All systems running Dinky up to version 1.2.5 are affected.
💻 Affected Systems
- DataLinkDC Dinky
📦 What is this software?
Dinky by Dinky
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code, access sensitive data, or disrupt operations.
Likely Case
Unauthorized access to administrative functions leading to data exposure, configuration changes, or privilege escalation.
If Mitigated
Limited impact if proper network segmentation and authentication controls are already in place.
🎯 Exploit Status
Exploit details are publicly available and the vulnerability is remotely exploitable without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Monitor vendor channels for updates. Consider upgrading to any version beyond 1.2.5 if available.
🔧 Temporary Workarounds
Network Access Control
allRestrict network access to Dinky instances using firewalls or network security groups.
Authentication Proxy
allPlace Dinky behind a reverse proxy with authentication (e.g., nginx with basic auth).
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Dinky instances from untrusted networks.
- Deploy web application firewall (WAF) rules to block unauthorized access to OpenAPI endpoints.
🔍 How to Verify
Check if Vulnerable:
Check Dinky version. If version is 1.2.5 or earlier, the system is vulnerable.Check Version:
Check application logs, configuration files, or use the Dinky web interface to determine version.Verify Fix Applied:
Verify version is greater than 1.2.5 or test authentication requirements for OpenAPI endpoints.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to OpenAPI endpoints
- Authentication bypass patterns in access logs
Network Indicators:
- Unusual traffic to /api endpoints without authentication headers
SIEM Query:
source="dinky" AND (url_path="/api/*" AND NOT auth_success="true")