{"id":"CVE-2026-15643","state":"PUBLISHED","title":"AWS HealthLake MCP Server SSRF via Pagination URL","description":"AWS HealthLake MCP Server (awslabs.healthlake-mcp-server) is a Model Context Protocol server that enables AI assistants to interact with AWS HealthLake FHIR datastores. A server-side request forgery in the pagination handling component in AWS awslabs.healthlake-mcp-server before 0.0.14 on all platforms might allow a remote authenticated user to exfiltrate AWS temporary security credentials to an arbitrary endpoint via a crafted next_token parameter. The server does not validate that pagination URLs point back to the expected HealthLake endpoint, allowing an actor to redirect subsequent requests to an actor-controlled server.\n\n\n\nIts recommended to upgrade to version 0.0.14 or later.","publishedAt":"2026-07-14T20:03:58.729Z","updatedAt":"2026-07-15T14:22:10.360Z","severity":{"score":9.2,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N","source":"AMZN"},"assigner":"AMZN","products":["AWS awslabs.healthlake-mcp-server"],"affected":[{"vendor":"AWS","product":"awslabs.healthlake-mcp-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.0.14","versionType":"custom"}]}],"references":["https://pypi.org/project/awslabs.healthlake-mcp-server/0.0.14/","https://aws.amazon.com/security/security-bulletins/2026-054-aws/"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15643.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15643","state":"PUBLISHED","datePublished":"2026-07-14T20:03:58.729Z","dateUpdated":"2026-07-15T14:22:10.360Z","assignerShortName":"AMZN","assignerOrgId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","dateReserved":"2026-07-13T18:48:24.351Z"},"containers":{"cna":{"title":"AWS HealthLake MCP Server SSRF via Pagination URL","descriptions":[{"lang":"en","value":"AWS HealthLake MCP Server (awslabs.healthlake-mcp-server) is a Model Context Protocol server that enables AI assistants to interact with AWS HealthLake FHIR datastores. A server-side request forgery in the pagination handling component in AWS awslabs.healthlake-mcp-server before 0.0.14 on all platforms might allow a remote authenticated user to exfiltrate AWS temporary security credentials to an arbitrary endpoint via a crafted next_token parameter. 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