Duplicate Advisory: SiYuan: Cross-Site WebSocket Hijacking on the admin-only network proxy endpoint (`/ws/network/proxy`) via explicit `CheckOrigin: true` bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-3cc2-h3v6-rqpq. This link is maintained to preserve external references. Original Description SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/pro...

GHSA-X8P6-569W-FMMR Duplicate Advisory: SiYuan: Cross-Site WebSocket Hijacking on the admin-only network proxy endpoint (`/ws/network/proxy`) via explicit `CheckOrigin: true` bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-3cc2-h3v6-rqpq. This link is maintained to preserve external references. Original Description SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/pro...

CVE-2026-74802

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket...

CVE-2026-74802 SiYuan 3.7.3 Cross-Site WebSocket Hijacking via network proxy

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket...

CVE-2026-74802 SiYuan 3.7.3 Cross-Site WebSocket Hijacking via network proxy

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket...

CVE-2026-74802

SiYuan versions before 3.7.4 set the WebSocket CheckOrigin handler to unconditionally return true on the admin-only /ws/network/proxy endpoint, allowing cross-site WebSocket hijacking. A malicious webpage can make the victim's SiYuan kernel proxy arbitrary network traffic, enabling authenticated ...

CVE-2026-74802

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket...

BIT-TOMCAT-2026-66299 Apache Tomcat: DoS via WebSocket chat example

Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web application...

K000162942: NodeJS vulnerability CVE-2026-48779

Security Advisory Description ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to but not including 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a...

PT-2026-76601

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.4 Description A cross-site WebSocket hijacking issue exists in the admin-only '/ws/network/proxy' endpoint. The flaw occurs because the CheckOrigin function is configured to unconditionally return true, effectively...

PT-2026-105549

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-3cc2-h3v6-rqpq. This link is maintained to preserve external references. Original Description SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/pro...

PT-2026-76867

Name of the Vulnerable Software and Affected Versions Mattermost versions 11.7.0 through 11.7.6 Mattermost versions 10.11.0 through 10.11.21 Mattermost versions 11.8.0 through 11.8.3 Description An issue exists where the software fails to validate WebSocket command field types. This allows an...

CVE-2026-74802: Origin Validation Error

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket...

CVE-2026-61666: Uncaught Exception

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when th...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: mozjs78 (UTSA-2024-002119)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2024-002119 advisory. A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to...

PT-2026-73440

Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web application...

PT-2026-76691

In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible...

CVE-2026-10080: Incorrect Type Conversion or Cast

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fails to validate WebSocket command field types which allows an authenticated user to crash the plugin process and deny service to all Boards users via a customfocalboardSUBSCRIBETEAM message with a non-string teamId...

CVE-2026-68762: Loop with Unreachable Exit Condition

In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible...

EUVD-2026-59803

SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the WebSocket endpoint caused by differential parsing of query parameters between authentication exemption and session quarantine checks. Unauthenticated attackers can craft a malicious WebSocket URI with duplicated...