{"id":"CVE-2026-25904","state":"PUBLISHED","title":"Overly permissive Deno configuration in mcp-run-python leads to SSRF","description":"The Pydantic-AI MCP Run Python tool configures the Deno sandbox with an overly permissive configuration that allows the underlying Python code to access the localhost interface of the host to perform SSRF attacks. Note - the \"mcp-run-python\" project is archived and unlikely to receive a fix.","publishedAt":"2026-02-09T08:51:18.196Z","updatedAt":"2026-02-09T14:04:04.176Z","severity":{"score":5.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L","source":"JFROG"},"assigner":"JFROG","products":["mcp-run-python"],"affected":[{"packageName":"mcp-run-python","versions":[{"version":"0","status":"affected","versionType":"python"}],"collectionURL":"https://pypi.org/project/pip"}],"references":["https://research.jfrog.com/vulnerabilities/mcp-run-python-deno-ssrf-jfsa-2026-001653029/"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25904.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25904","state":"PUBLISHED","datePublished":"2026-02-09T08:51:18.196Z","dateUpdated":"2026-02-09T14:04:04.176Z","assignerShortName":"JFROG","assignerOrgId":"48a46f29-ae42-4e1d-90dd-c1676c1e5e6d","dateReserved":"2026-02-08T11:19:42.864Z"},"containers":{"cna":{"title":"Overly permissive Deno configuration in mcp-run-python leads to SSRF","descriptions":[{"lang":"en","value":"The Pydantic-AI MCP Run Python tool configures the Deno sandbox with an overly permissive configuration that allows the underlying Python code to access the localhost interface of the host to perform SSRF attacks. Note - the \"mcp-run-python\" project is archived and unlikely to receive a fix."}],"affected":[{"packageName":"mcp-run-python","versions":[{"version":"0","status":"affected","versionType":"python"}],"collectionURL":"https://pypi.org/project/pip"}],"references":[{"url":"https://research.jfrog.com/vulnerabilities/mcp-run-python-deno-ssrf-jfsa-2026-001653029/"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918 Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"JFROG","orgId":"48a46f29-ae42-4e1d-90dd-c1676c1e5e6d","dateUpdated":"2026-02-09T08:51:18.196Z"},"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-09T14:02:22.527691Z","id":"CVE-2026-25904","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-09T14:04:04.176Z"}}]}}}