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CVE-2026-15643

HIGH
7.3
CVSS 3.1
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. Its recommended to upgrade to version 0.0.14 or later.

Metadata

CVE ID
CVE-2026-15643
State
PUBLISHED
Assigner
AMZN
Reserved
2026-07-13 18:48 UTC
Published
2026-07-14 20:03 UTC
Last updated
2026-07-14 20:03 UTC
Primary CWE
CWE-918
CWE-918 Server-Side request forgery (SSRF)
Vendor / Product
AWS / awslabs.healthlake-mcp-server
Sources
cve.org  ·  NVD

Severity & Metrics

7.3 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Affected products (1)
VendorProductPlatformVersions
AWS awslabs.healthlake-mcp-server — 0 < 0.0.14
Weakness (CWE)
CWESourceDescription
CWE-918 cna CWE-918 Server-Side request forgery (SSRF)
CVSS scores (2)
ScoreSeverityVersionSourceVector
9.2 CRITICAL 4.0 cna 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
7.3 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
References (2)
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