PYSEC-2026-485 PraisonAI Browser Server allows unauthenticated WebSocket clients to hijack connected extension sessions

Summary praisonai browser start exposes the browser bridge on 0.0.0.0 by default, and its /ws endpoint accepts websocket clients that omit the Origin header entirely. An unauthenticated network client can connect as a fake controller, send startsession, cause the server to forward startautomation...

PraisonAI Browser Server allows unauthenticated WebSocket clients to hijack connected extension sessions

Summarypraisonai browser start exposes the browser bridge on 0.0.0.0 by default, and its /ws endpoint accepts websocket clients that omit the Origin header entirely. An unauthenticated network client can connect as a fake controller, send startsession, cause the server to forward startautomation ...

PT-2026-53544

Summary praisonai browser start exposes the browser bridge on 0.0.0.0 by default, and its /ws endpoint accepts websocket clients that omit the Origin header entirely. An unauthenticated network client can connect as a fake controller, send start session, cause the server to forward start automati...

CVE-2026-54309

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the...

CVE-2026-54309

CVE-2026-54309 affects n8n when using the MCP Browser extension in HTTP transport mode. The MCP endpoint accepts unauthenticated session initialization and tool invocation requests, enabling network-reachable clients (or websites visited by the user) to establish an MCP session and invoke browser...

GHSA-QRX8-25QR-5R7V n8n: MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions

Impact When @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the user, can establish an MCP session and invoke browser-control tools. Whe...

CVE-2026-40289

PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the browser bridge praisonai browser start is vulnerable to unauthenticated remote session hijacking due to missing authentication and a bypassable origin check on its /ws WebSocket...

CVE-2026-40289

PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the browser bridge praisonai browser start is vulnerable to unauthenticated remote session hijacking due to missing authentication and a bypassable origin check on its /ws WebSocket...

CVE-2026-40289

PraosionAI (versions < 4.5.139) and praisonaiagents (

EUVD-2026-22211

PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the browser bridge praisonai browser start is vulnerable to unauthenticated remote session hijacking due to missing authentication and a bypassable origin check on its /ws WebSocket...

PraisonAI 访问控制错误漏洞

PraisonAI is a low-code multi-agent collaboration framework developed by Mervin Praison. Versions of PraisonAI prior to 4.5.139 and praisonaiagents prior to 1.5.140 contained an access control vulnerability. This vulnerability stemmed from the lack of authentication on the browser bridge and...

CVE-2026-40289: Missing Authentication for Critical Function

PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the browser bridge praisonai browser start is vulnerable to unauthenticated remote session hijacking due to missing authentication and a bypassable origin check on its /ws WebSocket...

PT-2026-32594

Name of the Vulnerable Software and Affected Versions PraisonAI versions prior to 4.5.139 praisonaiagents versions prior to 1.5.140 Description The browser bridge is susceptible to unauthenticated remote session hijacking. This occurs due to a lack of authentication and a bypassable origin check ...

CVE-2026-28468: Missing Authentication for Critical Function

OpenClaw versions 2026.1.29-beta.1 prior to 2026.2.14 contain a vulnerability in the sandbox browser bridge server in which it accepts requests without requiring gateway authentication, allowing local attackers to access browser control endpoints. A local attacker can enumerate tabs, retrieve...

OpenClaw has an authentication bypass in sandbox browser bridge server

Summary openclaw could start the sandbox browser bridge server without authentication. When the sandboxed browser is enabled, openclaw runs a local loopback HTTP bridge that exposes browser control endpoints for example /profiles, /tabs, /tabs/open, /agent/. Due to missing auth wiring in the...

PT-2026-23543

Name of the Vulnerable Software and Affected Versions OpenClaw versions 2026.1.29-beta.1 through 2026.2.13 Description The software contains a flaw in the sandbox browser bridge server that does not require gateway authentication, potentially allowing local attackers to access browser control...