PYSEC-2026-3483 MCP Python SDK: WebSocket server transport does not support Host/Origin validation

Summary In affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocketserver 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...

MCP Python SDK: WebSocket server transport does not support Host/Origin validation

SummaryIn affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocketserver 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...

PYSEC-2026-3459 Anki's local HTTP server does not sufficiently validate requests

Summary Anki launches a local HTTP server to serve media files and web pages for parts of its interface. While the server has a CORS setup, requests from other origins were not blocked, allowing malicious websites to potentially trigger side-effecting requests. Browser impact The severity varies ...

PYSEC-2026-3500 PraisonAI: Arbitrary File Read/Write via `multiedit` Tool Without Path Validation

Summary The multiedit tool in src/praisonai/praisonai/tools/multiedit.py allows LLM-controlled arbitrary file read and write without any path validation, workspace boundary check, or protected path guard. This enables an attacker who can influence agent tool arguments via crafted prompts, user...

PYSEC-2026-3536 PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in

The MCP SSE server started via ToolsMCPServer.runsse / launchtoolsmcpservertransport="sse" binds to 0.0.0.0 by default and builds its Starlette application with no authentication middleware and no Origin-header validation. The module mcp/mcpsecurity.py provides exactly the needed controls origin...

PYSEC-2026-3531 PraisonAI: SpiderTools redirect-target SSRF protection bypass

SpiderTools redirect-target SSRF protection bypass Summary SpiderTools.scrapepage validates the initial URL and rejects direct loopback, private, link-local, metadata, and internal hostnames. It then calls requests.Session.get without disabling automatic redirects or validating redirect Location...

PYSEC-2026-3514 PraisonAI dynamic-context artifact tools read arbitrary host files outside artifact storage

PraisonAI dynamic-context artifact tools read arbitrary host files outside artifact storage Summary PraisonAI's Dynamic Context Discovery feature exposes artifact helper tools through ctx.gettools: python ctx = setupdynamiccontext agent = Agent instructions="You are a data analyst.",...

PYSEC-2026-3534 PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools

PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools Summary praisonaiagents.mcp.ToolsMCPServer.runsse builds a Starlette MCP HTTP+SSE server around mcp.server.sse.SseServerTransport. The server exposes /sse and /messages/, but it does not valida...

PYSEC-2026-3492 OpenStack oslo.messaging does not verify RabbitMQ broker hostname during TLS handshake

An issue was discovered in OpenStack oslo.messaging 1.0.0 through 17.3.0. The oslo.messaging RabbitMQ driver does not perform TLS hostname verification when connecting to the message broker. When sslcafile is configured, the driver enables certificate chain validation but does not pass the expect...

OpenStack oslo.messaging does not verify RabbitMQ broker hostname during TLS handshake

An issue was discovered in OpenStack oslo.messaging 1.0.0 through 17.3.0. The oslo.messaging RabbitMQ driver does not perform TLS hostname verification when connecting to the message broker. When sslcafile is configured, the driver enables certificate chain validation but does not pass the expect...

PYSEC-2026-3472 jupyter-server is vulnerable to CORS origin validation bypass when the `allow_origin_pat` configuration is used

A vulnerability in jupyter-server versions 1.12.0 through 2.17.0 allows an attacker to bypass CORS origin validation when the alloworiginpat configuration is used. The issue arises from the use of re.match for validating the Origin header, which only anchors at the start of the string. This allow...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in ANGLE in Google Chrome prior to version 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in the Reading Mode of Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in the GPU component of Google Chrome prior to version 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to leak cross-origin data through a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in SSL in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to perform UI spoofing via a crafted HTML page. Chromium security severity: Low...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in DevTools in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. Chromium security severity: Low...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in Skia in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted inputs. In Google Chrome, prior to version 147.0.7727.138, untrusted inputs could be processed without proper validation. This allowed a remote attacker who had compromised the renderer process to bypass site isolation through a crafted HTML page. Chromium...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in DataTransfer in Google Chrome prior to version 148.0.7778.168 allowed a remote attacker who convinced a user to perform certain UI gestures to obtain potentially sensitive information from process memory through a crafted HTML page. Chromium security...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in Printing in Google Chrome prior to version 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. Chromium security severity: High...