https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T05:54:53.273441+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/brew-cycode-cve-2025-66416 BREW-cycode-CVE-2025-66416 — Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default 2026-10-04T05:54:53.821231+00:00

Affected: Homebrew: cycode

### Description

The Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using `FastMCP` with streamable HTTP or SSE transport, and has not configured `TransportSecuritySettings`, a malicious website could exploit DNS rebinding to bypass same-origin policy restrictions and send requests to the local MCP server. This could allow an attacker to invoke tools or access resources exposed by the MCP server on behalf of the user in those limited circumstances.

Note that running HTTP-based MCP servers locally without authentication is not recommended per MCP security best practices. This issue does not affect servers using stdio transport.

Servers created via `FastMCP()` now have DNS rebinding protection enabled by default when the `host` parameter is `127.0.0.1` or `localhost`. Users are advised to update to version `1.23.0` to receive this automatic protection. Users with custom low-level server configurations using `StreamableHTTPSessionManager` or `SseServerTransport` directly should explicitly configure `TransportSecuritySettings` when running an unauthenticated server on localhost.

 https://cve.radiocsirt.org/vuln/euvd-2026-262322 EUVD-2026-262322 2026-10-04T05:54:53.821310+00:00 EUVD-2026-262322 https://cve.radiocsirt.org/vuln/fkie_cve-2025-66416 fkie_cve-2025-66416 2026-10-04T05:54:53.821327+00:00

The MCP Python SDK, called `mcp` on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.23.0, tThe Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using FastMCP with streamable HTTP or SSE transport, and has not configured TransportSecuritySettings, a malicious website could exploit DNS rebinding to bypass same-origin policy restrictions and send requests to the local MCP server. This could allow an attacker to invoke tools or access resources exposed by the MCP server on behalf of the user in those limited circumstances. Note that running HTTP-based MCP servers locally without authentication is not recommended per MCP security best practices. This issue does not affect servers using stdio transport. This vulnerability is fixed in 1.23.0.

 https://cve.radiocsirt.org/vuln/ghsa-9h52-p55h-vw2f GHSA-9h52-p55h-vw2f — Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default 2026-10-04T05:54:53.821356+00:00

Affected: PyPI: mcp

### Description

The Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using `FastMCP` with streamable HTTP or SSE transport, and has not configured `TransportSecuritySettings`, a malicious website could exploit DNS rebinding to bypass same-origin policy restrictions and send requests to the local MCP server. This could allow an attacker to invoke tools or access resources exposed by the MCP server on behalf of the user in those limited circumstances.

Note that running HTTP-based MCP servers locally without authentication is not recommended per MCP security best practices. This issue does not affect servers using stdio transport.

Servers created via `FastMCP()` now have DNS rebinding protection enabled by default when the `host` parameter is `127.0.0.1` or `localhost`. Users are advised to update to version `1.23.0` to receive this automatic protection. Users with custom low-level server configurations using `StreamableHTTPSessionManager` or `SseServerTransport` directly should explicitly configure `TransportSecuritySettings` when running an unauthenticated server on localhost.

 https://cve.radiocsirt.org/vuln/pysec-2026-1617 PYSEC-2026-1617 — Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default 2026-10-04T05:54:53.821385+00:00

Affected: PyPI: mcp

### Description

The Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using `FastMCP` with streamable HTTP or SSE transport, and has not configured `TransportSecuritySettings`, a malicious website could exploit DNS rebinding to bypass same-origin policy restrictions and send requests to the local MCP server. This could allow an attacker to invoke tools or access resources exposed by the MCP server on behalf of the user in those limited circumstances.

Note that running HTTP-based MCP servers locally without authentication is not recommended per MCP security best practices. This issue does not affect servers using stdio transport.

Servers created via `FastMCP()` now have DNS rebinding protection enabled by default when the `host` parameter is `127.0.0.1` or `localhost`. Users are advised to update to version `1.23.0` to receive this automatic protection. Users with custom low-level server configurations using `StreamableHTTPSessionManager` or `SseServerTransport` directly should explicitly configure `TransportSecuritySettings` when running an unauthenticated server on localhost.

 https://cve.radiocsirt.org/vuln/rhsa-2025:23531 RHSA-2025:23531 — Red Hat Security Advisory: RHOAI 2.25.1 - Red Hat OpenShift AI 2026-10-04T05:54:53.821415+00:00

keras: Arbitary Code execution in Keras load_model() keras: Arbitrary Code execution in Keras Safe Mode keras: Keras Path Traversal Vulnerability keras: Path Traversal Vulnerability in keras golang.org/x/crypto/ssh/agent: golang.org/x/crypto/ssh/agent: SSH client panic due to unexpected SSH_AGENT_SUCCESS keras: Keras deserialization of untrusted data aiohttp: AIOHTTP HTTP Request/Response Smuggling vllm: VLLM deserialization vulnerability leading to DoS and potential RCE ray: Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack starlette: Starlette DoS via Range header merging glob: glob: Command Injection Vulnerability via Malicious Filenames mcp: DNS Rebinding Protection Disabled by Default in Model Context Protocol Python SDK

 https://cve.radiocsirt.org/vuln/wid-sec-w-2026-0120 WID-SEC-W-2026-0120 — Red Hat Satellite (satellite/foreman-mcp-server-rhel9): Mehrere Schwachstellen 2026-10-04T05:54:53.821455+00:00

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Red Hat Satellite ausnutzen, um einen Denial of Service Angriff durchzuführen oder Sicherheitsmaßnahmen zu umgehen.