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How the CVE Works
Apache Zeppelin versions 0.11.1 to before 0.12.0 fail to validate WebSocket origins, allowing attackers to bypass same-origin policy restrictions. A malicious actor can initiate WebSocket connections from an unauthorized domain, potentially accessing sensitive internal paragraph data. The lack of proper origin checks enables Cross-Site WebSocket Hijacking (CSWSH), leading to unauthorized data exfiltration.
DailyCVE Form
Platform: Apache Zeppelin
Version: 0.11.1 – <0.12.0
Vulnerability: WebSocket Origin Bypass
Severity: Moderate
Date: Aug 3, 2025
Prediction: Patch expected by Aug 10, 2025
What Undercode Say
Analytics:
Check Zeppelin version zeppelin-daemon.sh status Verify WebSocket headers curl -I -H "Origin: malicious.com" ws://zeppelin-server/ws Log inspection grep "WebSocket connection" /var/log/zeppelin/zeppelin.log
Exploit:
- Craft malicious JS to initiate WebSocket connection.
- Bypass origin checks to fetch paragraph metadata.
- Exfiltrate data via attacker-controlled server.
Protection from this CVE
- Upgrade to Zeppelin 0.12.0.
- Implement strict CORS policies.
- Validate WebSocket `Origin` headers.
Impact:
- Unauthorized data access.
- Potential paragraph metadata leakage.
- Low operational disruption.
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Sources:
Reported By: github.com
Extra Source Hub:
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