{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/python-notebook-mcp/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.3,"id":"CVE-2026-7810"}],"_cs_exploited":false,"_cs_products":["python-notebook-mcp"],"_cs_severities":["high"],"_cs_tags":["path traversal","vulnerability","python-notebook-mcp"],"_cs_type":"advisory","_cs_vendors":["UsamaK98"],"content_html":"\u003cp\u003eA path traversal vulnerability, identified as CVE-2026-7810, affects the UsamaK98 python-notebook-mcp project. The vulnerability resides within the create_notebook, read_notebook, edit_cell, and add_cell functions of the server.py file. An unauthenticated remote attacker can exploit this flaw to read or write arbitrary files on the server. The project uses a rolling release model, making specific version identification difficult. While the vulnerability was reported to the project maintainers, there has been no response as of this writing. This vulnerability is remotely exploitable and can lead to significant data exposure or server compromise.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker identifies a vulnerable python-notebook-mcp instance exposed to the internet.\u003c/li\u003e\n\u003cli\u003eAttacker crafts a malicious HTTP request targeting the create_notebook endpoint.\u003c/li\u003e\n\u003cli\u003eThe crafted request includes a path traversal sequence (e.g., \u0026ldquo;../\u0026rdquo;) within the filename parameter, designed to escape the intended directory.\u003c/li\u003e\n\u003cli\u003eThe server.py script processes the request without proper sanitization of the filename.\u003c/li\u003e\n\u003cli\u003eThe create_notebook function attempts to create a file outside of the intended notebook directory.\u003c/li\u003e\n\u003cli\u003eThe attacker then uses read_notebook to read the file that they created to verify successful path traversal.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts further requests to read sensitive files on the server, such as configuration files or user data.\u003c/li\u003e\n\u003cli\u003eThe attacker gains unauthorized access to sensitive information, potentially leading to account compromise or further system exploitation.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this path traversal vulnerability (CVE-2026-7810) allows an attacker to read and potentially create or modify arbitrary files on the server hosting the python-notebook-mcp application. Given the nature of notebook applications, this could expose sensitive code, data, or credentials stored within the application\u0026rsquo;s environment. The lack of specific version details due to the rolling release model makes patching and mitigation challenging for users.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect Python-Notebook-MCP Path Traversal in create_notebook\u003c/code\u003e to identify exploitation attempts targeting the create_notebook function.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect Python-Notebook-MCP Path Traversal in read_notebook\u003c/code\u003e to identify exploitation attempts targeting the read_notebook function.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for HTTP requests containing path traversal sequences (e.g., \u0026ldquo;../\u0026rdquo;, \u0026ldquo;..\u0026quot;, \u0026ldquo;%2e%2e/\u0026rdquo;) in the URI, especially those targeting the create_notebook, read_notebook, edit_cell, and add_cell functions as described in the overview.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-05T04:16:19Z","date_published":"2026-05-05T04:16:19Z","id":"/briefs/2026-05-python-notebook-mcp-path-traversal/","summary":"A path traversal vulnerability exists in the create_notebook/read_notebook/edit_cell/add_cell functions of server.py in UsamaK98's python-notebook-mcp, allowing remote attackers to access arbitrary files.","title":"Path Traversal Vulnerability in UsamaK98 python-notebook-mcp","url":"https://feed.craftedsignal.io/briefs/2026-05-python-notebook-mcp-path-traversal/"}],"language":"en","title":"CraftedSignal Threat Feed — Python-Notebook-Mcp","version":"https://jsonfeed.org/version/1.1"}