Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, Browser Server _handle_connection() checks Chrome extension origins with re.match() and the unanchored expression chrome-extension://[a-z0-9]{32}. Extra trailing characters pass before websocket.accept(), allowing start_session commands and unauthorized browser automation. This issue is fixed in version 4.6.58.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828f
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-6g6r-q6gw-w8
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-6g6r-q6gw-w8
FAQ
What is CVE-2026-55536?
CVE-2026-55536 is a vulnerability with a CVSS score of 9.1 (CRITICAL). PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, Browser Server _handle_connection() checks Chrome extension origins with re.match() and the unanchored expression chrome-extension:/...
How severe is CVE-2026-55536?
CVE-2026-55536 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-55536?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.