CVE-2026-33946 MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to version 0.9.2, the Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's...

CVE-2026-33946

The CVE affects the MCP Ruby SDK prior to 0.9.2. In streamable_http_transport.rb, an attacker with a valid session ID can hijack the victim’s SSE stream and intercept real-time data, due to insufficient session binding. Version 0.9.2 patches this. No additional exploit details are provided beyond...

EUVD-2026-16817

Gematik Authenticator securely authenticates users for login to digital health applications. Versions prior to 4.16.0 are vulnerable to authentication flow hijacking, potentially allowing attackers to authenticate with the identities of victim users who click on a malicious deep link. Update...

CVE-2026-33875

Gematik Authenticator securely authenticates users for login to digital health applications. Versions prior to 4.16.0 are vulnerable to authentication flow hijacking, potentially allowing attackers to authenticate with the identities of victim users who click on a malicious deep link. Update...

CVE-2026-33875 Authenticator Vulnerable to Authentication Flow Hijack

Gematik Authenticator securely authenticates users for login to digital health applications. Versions prior to 4.16.0 are vulnerable to authentication flow hijacking, potentially allowing attackers to authenticate with the identities of victim users who click on a malicious deep link. Update...

GHSA-QVQR-5CV7-WH35 MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

Summary The Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's Server-Sent Events SSE stream and intercept all real-time data. Details Root Cause The StreamableHTTPTransport...

MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

Summary The Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's Server-Sent Events SSE stream and intercept all real-time data. Details Root Cause The StreamableHTTPTransport...

CVE-2025-55273

HCL Aftermarket DPC is affected by Cross Domain Script Include vulnerability where an attacker using external scripts can tamper with the DOM, altering the content or behavior of the application. Malicious scripts can steal cookies or session tokens, leading to session hijacking...

CVE-2025-41359

Vulnerability related to an unquoted service path in Small HTTP Server 3.06.36, specifically affecting the executable located at 'C:\Program Files x86\shttpsmg\http.exe service'. This misconfiguration allows a local attacker to place a malicious executable with the same name in a higher priority...

CVE-2026-34245 AVideo's Missing Authorization in Playlist Schedule Creation Allows Cross-User Broadcast Hijacking

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the plugin/PlayLists/View/Playlistsschedules/add.json.php endpoint allows any authenticated user with streaming permission to create or modify broadcast schedules targeting any playlist on the platform, regardless...

CVE-2026-34245

WWBN AVideo is affected by CVE-2026-34245: in versions up to 26.0, the endpoint plugin/PlayLists/View/Playlists_schedules/add.json.php allows any authenticated user with streaming permission to create/modify broadcast schedules for any playlist, regardless of ownership. When a scheduled rebroadca...

CVE-2026-34245 AVideo's Missing Authorization in Playlist Schedule Creation Allows Cross-User Broadcast Hijacking

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the plugin/PlayLists/View/Playlistsschedules/add.json.php endpoint allows any authenticated user with streaming permission to create or modify broadcast schedules targeting any playlist on the platform, regardless...

CVE-2026-34245 AVideo's Missing Authorization in Playlist Schedule Creation Allows Cross-User Broadcast Hijacking

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the plugin/PlayLists/View/Playlistsschedules/add.json.php endpoint allows any authenticated user with streaming permission to create or modify broadcast schedules targeting any playlist on the platform, regardless...

CVE-2026-25101 Session Fixation in Bludit

Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behavior enables an attacker to fix a session ID for a victim and later hijack the authenticated session. This issue was fixed in version 3.17.2...

BIT-NATS-2026-33215 NATS is vulnerable to MQTT hijacking via Client ID

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server provides an MQTT client interface. Prior to versions 2.11.15 and 2.12.5, Sessions and Messages can by hijacked via MQTT Client ID malfeasance. Versions 2.11.15 and 2.12.5 patch the issu...

MCP Ruby SDK 安全漏洞

MCP Ruby SDK is an open-source development toolkit for building and interacting with Model Context Protocol clients. Versions of the MCP Ruby SDK prior to 0.9.2 contained security vulnerabilities. These vulnerabilities stemmed from issues with the streamablehttptransport.rb implementation, which...

PT-2026-28546

Name of the Vulnerable Software and Affected Versions Gematik Authenticator versions prior to 4.16.0 Description Gematik Authenticator is used to securely authenticate users for login to digital health applications. Versions prior to 4.16.0 are susceptible to authentication flow hijacking. An...

Bludit 授权问题漏洞

Bludit is an open-source, lightweight blog content management system developed by Bludit. Versions of Bludit prior to 3.17.2 had an authorization vulnerability. This vulnerability stemmed from the ability to set session identifiers before authentication, which could lead to session hijacking...

MCP Ruby SDK - Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

Summary The Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's Server-Sent Events SSE stream and intercept all real-time data. Details Root Cause The StreamableHTTPTransport...

PT-2026-28576

Name of the Vulnerable Software and Affected Versions MCP Ruby SDK versions prior to 0.9.2 Description The Ruby SDK for Model Context Protocol servers and clients contains a session hijacking issue in its streamable http transport.rb implementation. An attacker obtaining a valid session ID can...