CVE-2026-23538

The CVE affects Feast: Feast Feature Server /ws/chat accepts unauthenticated, persistent WebSocket connections. An attacker can open many concurrent connections to exhaust memory, CPU, and file descriptors, causing DoS. Affected software: Feast (Python SDK context cited by SNYK for Feast >=0.1...

CVE-2026-23538 Feast: resource exhaustion via websocket endpoint

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

PT-2026-60352

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

PT-2026-60671

Summary In affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocket server accepted the WebSocket handshake without applying any Host or Origin header validation. The TransportSecuritySettings mechanism that the SSE and Streamable HTTP transports use for this...

PT-2026-60567

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.4, Centrifugo unidirectional WebSocket transport with uni websocket.compression enabled enforced uni websocket.message size limit against compressed wire-frame length in internal/websocket/conn.go advanceFrame, but...

PT-2026-60495

Microsoft UFO open-source framework for intelligent automation across devices and platforms. From 3.0.0 until 3.0.6, a client connected to the UFO WebSocket server as a DEVICE could call DEVICE INFO REQUEST with another device's target id and receive that device's server-side system info through...

CVE-2026-23538: Allocation of Resources Without Limits or Throttling

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

CVE-2026-54568: Authorization Bypass Through User-Controlled Key

Microsoft UFO open-source framework for intelligent automation across devices and platforms. From 3.0.0 until 3.0.6, a client connected to the UFO WebSocket server as a DEVICE could call DEVICEINFOREQUEST with another device's targetid and receive that device's server-side systeminfo through...

CVE-2026-62963: Improper Handling of Highly Compressed Data (Data Amplification)

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.4, Centrifugo unidirectional WebSocket transport with uniwebsocket.compression enabled enforced uniwebsocket.messagesizelimit against compressed wire-frame length in internal/websocket/conn.go advanceFrame, but...

Linux Distros Unpatched Vulnerability : CVE-2026-62389

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ws before 8.21.1 contains a memory exhaustion vulnerability in lib/receiver.js where the fragment guard only triggers when fragment count reaches maxFragments,...

Linux Distros Unpatched Vulnerability : CVE-2026-49854

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, the optional native extension tornado.speedups implemented websocketmask...

CVE-2026-54458

WWBN AVideo is an open source video platform. Versions prior to 29.0 contain a stored DOM Cross-Site Scripting vulnerability in the YPTSocket plugin. Any unauthenticated remote attacker can execute arbitrary JavaScript in the authenticated origin of every administrator currently viewing a page th...

CVE-2026-49279

WWBN AVideo is an open source video platform. Versions 29.0 and below contain a Stored XSS vulnerability through the autoEvalCodeOnHTML parameter in the MessageSQLite WebSocket Handler. The MessageSQLite.php handler only strips autoEvalCodeOnHTML from $json'msg', but msgToResourceId reads from...

-tompan-reacttemplate (>=1.0.1, <=1.1.0), 3d-crystal-model (0.1.0) +3504 more potentially affected by CVE-2026-54490 via websocket-driver (>=0.3.5, <=0.7.4)

websocket-driver NPM version =0.3.5, =1.0.1, =0.1.2, =1.0.8, =0.1.0, =0.1.21, =1.0.0, =1.0.5, =0.2.0, =3.4.1, =0.1.1, =0.1.272 - @themis/usescheme 1.1.4 - @ab-task/react-tool-belt 0.1.1 and more Source cves: CVE-2026-54490 Source advisory: OSV:GHSA-MP7J-QC5W-4988...

websocket-driver: Resource limit bypass via message compression

Impact If this library is used in tandem with the permessage-deflate extension, a WebSocket server or client can be made to accept messages that are larger than the configured maximum message size. This is because this limit is checked against the message frames' length headers, which give the si...

-tompan-reacttemplate (>=1.0.1, <=1.1.0), 3d-crystal-model (0.1.0) +3504 more potentially affected by CVE-2026-54490 via websocket-driver (>=0.3.5, <=0.7.4)

websocket-driver NPM version =0.3.5, =1.0.1, =0.1.2, =1.0.8, =0.1.0, =0.1.21, =1.0.0, =1.0.5, =0.2.0, =3.4.1, =0.1.1, =0.1.272 - @themis/usescheme 1.1.4 - @ab-task/react-tool-belt 0.1.1 and more Source cves: CVE-2026-54490 Source advisory: SNYK:JS-WEBSOCKETDRIVER-17987674...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via message compression through the hybi message handling in lib/websocket/driver/hybi.js. An attacker can make a WebSocket server or client accept oversized messages by sending...

-tompan-reacttemplate (>=1.0.1, <=1.1.0), 3d-crystal-model (0.1.0) +3504 more potentially affected by CVE-2026-54490 via websocket-driver (>=0.3.5, <=0.7.4)

websocket-driver NPM version =0.3.5, =1.0.1, =0.1.2, =1.0.8, =0.1.0, =0.1.21, =1.0.0, =1.0.5, =0.2.0, =3.4.1, =0.1.1, =0.1.272 - @themis/usescheme 1.1.4 - @ab-task/react-tool-belt 0.1.1 and more Source cves: CVE-2026-54490 Source advisory: GHSA-MP7J-QC5W-4988...

Allocation of Resources Without Limits or Throttling

Overview websocket-driver is a websocket protocol handler with pluggable I/O. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via message compression through the hybi message handling in lib/websocket/driver/hybi.js. An attacker can make a...

NPM: websocket-driver: Resource limit bypass via message compression

NPM: websocket-driver: Resource limit bypass via message compression vulnerability discovered by ? in WordPress Npm websocket-driver versions 0.7.5...