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 ...

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...

Pipecat: Remote Code Execution by Pickle Deserialization Through LivekitFrameSerializer

Remote Code Execution via Unsafe Deserialization in Pipecat's LivekitFrameSerializer SummaryA critical vulnerability exists in Pipecat's LivekitFrameSerializer – an optional, non-default, undocumented frame serializer class now deprecated intended for LiveKit integration. The class's deserialize...

PYSEC-2026-458 Pipecat: Remote Code Execution by Pickle Deserialization Through LivekitFrameSerializer

Remote Code Execution via Unsafe Deserialization in Pipecat's LivekitFrameSerializer Summary A critical vulnerability exists in Pipecat's LivekitFrameSerializer – an optional, non-default, undocumented frame serializer class now deprecated intended for LiveKit integration. The class's deserialize...

Security update for tomcat

This update for tomcat fixes the following issues Update to Tomcat 9.0.118: CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling bsc1265162. CVE-2026-41293: HTTP/2 request headers not validated bsc1265163. CVE-2026-42498: WebSocket authentication header exposure bsc1265165...

SUSE-SU-2026:2675-1 Security update for tomcat

This update for tomcat fixes the following issues Update to Tomcat 9.0.118: - CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling bsc1265162. - CVE-2026-41293: HTTP/2 request headers not validated bsc1265163. - CVE-2026-42498: WebSocket authentication header exposure bsc1265165. -...

PT-2026-53560

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...

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...

Malicious code in ulid-xyz (npm)

ulid-xyz is a typosquat of the popular ulid library sortable unique IDs and is a cross-platform Remote Access Trojan delivered via a postinstall hook. The package.json postinstall superficially looks like an inline node -e guard that checks for the existence of a dist file, but it actually launch...

PT-2026-53550

Summary The PraisonAI Gateway server accepts WebSocket connections at /ws and serves agent topology at /info with no authentication. Any network client can connect, enumerate registered agents, and send arbitrary messages to agents and their tool sets. Details gateway/server.py:242 source -...

PT-2026-79097

Name of the Vulnerable Software and Affected Versions Libevent versions 2.2.0-alpha-dev through 2.2.2-alpha Description The WebSocket server in ws.c fails to enforce a total message-size limit when accumulating fragmented frames in evws-incomplete frames. An unauthenticated remote client can send...

PT-2026-53490

Summary Marimo 19.6k stars has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSocket endpoints e.g., /ws that correct...

PT-2026-53537

Remote Code Execution via Unsafe Deserialization in Pipecat's LivekitFrameSerializer Summary A critical vulnerability exists in Pipecat's LivekitFrameSerializer – an optional, non-default, undocumented frame serializer class now deprecated intended for LiveKit integration. The class's deserialize...

Stored DOM-Based Cross-Site Scripting

wwbn/avideo is vulnerable to Stored DOM-Based Cross-Site Scripting. The vulnerability is due to improper validation and sanitization of the attacker-controlled webSocketSelfURI and pagetitle parameters in the YPTSocket plugin, which are stored and later rendered into the DOM using $.append withou...

undici WebSocket client vulnerable to denial of service via cumulative fragment bypass

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EUVD-2026-36601

Nezha Monitoring: Unbounded WebSocket Streams — Resource Exhaustion DoS...

Nezha Monitoring: Unbounded WebSocket Streams — Resource Exhaustion DoS

Description The Nezha dashboard exposes two endpoints that create long-lived WebSocket streams to monitored agents: - POST /api/v1/terminal → createTerminal terminal.go:27-67 - POST /api/v1/file → createFM fm.go:28-67 Both call rpc.NezhaHandlerSingleton.CreateStreamstreamId, ... which inserts a...

GHSA-Q6XX-5VR8-P898 Nezha vulnerable to cross-tenant terminal/file-manager session hijack via WebSocket stream UUID without ownership check

Summary In nezha v1.14.13–v1.14.14 and v2.0.0–v2.0.9, the WebSocket endpoints GET /ws/terminal/:id and GET /ws/file/:id authenticate the caller only by the presence of a valid stream UUID, with no ownership check tying that UUID to the user who created the stream. Any authenticated dashboard user...

Nezha vulnerable to cross-tenant terminal/file-manager session hijack via WebSocket stream UUID without ownership check

Summary In nezha v1.14.13–v1.14.14 and v2.0.0–v2.0.9, the WebSocket endpoints GET /ws/terminal/:id and GET /ws/file/:id authenticate the caller only by the presence of a valid stream UUID, with no ownership check tying that UUID to the user who created the stream. Any authenticated dashboard user...

GHSA-Q8JG-FGJ4-FPHF Hackney has unbounded buffer accumulation in WebSocket

Summary The WebSocket client in src/hackneyws.erl imposes no upper bound on memory consumption across three distinct code paths. In each case, an attacker-controlled WebSocket server can exhaust the connecting process's memory without any authentication or special client configuration. Details 1...