{"data":{"id":"2dbcd101-7745-4b50-bd88-3fdd9888cf0d","title":"GHSA-hv85-774v-26fg: auth-fetch-mcp: SSRF and disk exfiltration via unvalidated auth_fetch and download_media URLs","summary":"The download_media and auth_fetch tools in ymw0407/auth-fetch-mcp accept arbitrary URLs and request them from the MCP server process without validating the destination. An MCP client can therefore reach loopback, link-local and private-range hosts, and download_media additionally writes the response body to a user-controlled output directory.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-hv85-774v-26fg","publishedAt":"2026-05-19T15:47:27.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":["auth-fetch-mcp@<= 3.0.0 (fixed: 3.0.1)"],"affectedPackageNames":["auth-fetch-mcp"],"affectedPackageRefs":["npm:auth-fetch-mcp"],"affectedVendors":[],"affectedVendorsRaw":["auth-fetch-mcp","MCP"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":["GHSA-hv85-774v-26fg"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-05-19T15:47:27.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality"],"aiComponentTargeted":"plugin","llmSpecific":false,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null}}