CVE-2026-55536
CRITICAL
NVD
CVSS Score
9.1
Severity
CRITICAL
Published
Aug 25, 2026
Vendor
unknown
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.