CVE-2026-15643
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
A server-side request forgery (SSRF) vulnerability in the pagination component of AWS HealthLake MCP Server before version 0.0.14 allows a remote authenticated user to redirect pagination requests to an arbitrary endpoint. By crafting a malicious next_token parameter, an attacker can exfiltrate AWS temporary security credentials.
Risk Assessment
The organization risks theft of AWS temporary credentials, potentially leading to unauthorized cloud resource access, privilege escalation, and data breaches in HealthLake datastores.
Recommendation
Immediately upgrade awslabs.healthlake-mcp-server to version 0.0.14 or later. After upgrading, verify pagination configuration and restrict trusted endpoints in firewall rules.
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Original NVD description (English source)
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. Its recommended to upgrade to version 0.0.14 or later.