CVE-2026-90938 LangBot through 0.4.17 Unauthenticated Plugin Registration via WebSocket

LangBot's plugin runtime pip package langbotplugin through 0.4.17 starts a debug WebSocket server on 0.0.0.0:5401 /plugin/ws whose authentication is gated on plugindebugkey, which defaults to an empty string and is never set by the upstream repository, Docker image, or docker-compose which...

CVE-2026-90938

LangBot (pip package langbot_plugin) through 0.4.17 exposes a debug WebSocket server on 0.0.0.0:5401 (/plugin/ws) whose authentication depends on plugin_debug_key, which defaults to an empty string and is never set by the upstream repository, Docker image, or docker-compose. Because docker-compos...

CVE-2026-90938 LangBot through 0.4.17 Unauthenticated Plugin Registration via WebSocket

LangBot's plugin runtime pip package langbotplugin through 0.4.17 starts a debug WebSocket server on 0.0.0.0:5401 /plugin/ws whose authentication is gated on plugindebugkey, which defaults to an empty string and is never set by the upstream repository, Docker image, or docker-compose which...

PT-2026-91214

LangBot's plugin runtime pip package langbot plugin through 0.4.17 starts a debug WebSocket server on 0.0.0.0:5401 /plugin/ws whose authentication is gated on plugin debug key, which defaults to an empty string and is never set by the upstream repository, Docker image, or docker-compose which...

CVE-2026-90562

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and...

CVE-2026-90562 LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and...

EUVD-2026-76987

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and...

CVE-2026-90562 LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and...

CVE-2026-90562

LangBot before 4.10.11 is vulnerable to authentication bypass via a weak password recovery key mechanism. The application generates recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. A remote attacker who knows the administrator...

CVE-2026-90562 LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and...

CVE-2026-90562: Insufficient Entropy

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and...

PT-2026-90833

CVE-2026-90562 isn't a prompt injection zero-day. it's a password reset bug straight out of the OWASP Top 10 circa 2005, wearing an "agentic AI" badge. LangBot orchestrates LLM agents across Discord, Telegram, Slack bridges. the CVE lets an attacker hit the password reset endpoint and walk straig...

CVE-2026-54449

LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configur...

CVE-2026-54449

In LangBot 4.10.7 and earlier, StdioServerParameters in src/langbot/pkg/provider/tools/loaders/mcp.py runs attacker-supplied commands as a server-side subprocess without authorization checks (CWE-78). Any authenticated user can add an arbitrary command via the Extensions MCP tab, achieving full R...

CVE-2026-54449 LangBot: Authenticated RCE Via MCP Configuration

LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configur...

EUVD-2026-63480

LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configur...

CVE-2026-54449 LangBot: Authenticated RCE Via MCP Configuration

LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configur...

CVE-2026-54449 LangBot: Authenticated RCE Via MCP Configuration

LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configur...

CVE-2026-54449: Improper Neutralization of Special Elements used in a Command

LangBot is a global IM bot platform designed for LLMs. In version 4.10.7 and earlier, any authenticated user can add or change an STDIO MCP server configuration without an adequate authorization boundary. In src/langbot/pkg/provider/tools/loaders/mcp.py, StdioServerParameters accepts the configur...

LangBot: Authenticated RCE Via MCP Configuration

SummaryAny authenticated user can achieve arbitrary command execution on the LangBot servers through changing the MCP Server Configuration by added an "STDIO" MCP with an arbitrary command. DetailsThe repository uses StdioServerParameters which is based on Anthropic's modelcontextprotocol open...