CVE-2026-15643

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 88% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.3
EG Score
7.3(medium)
EPSS
12.5%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jul 15, 2026
No patch confirmed yet.
generic

awslabs.healthlake-mcp-server · PyPI

https://pypi.org/project/awslabs.healthlake-mcp-server/0.0.14/
generic

CVE-2026-15643 - AWS HealthLake MCP Server SSRF via Unvalidated Pagination URL

https://aws.amazon.com/security/security-bulletins/2026-054-aws/

Vendor Advisories for CVE-2026-15643(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 5× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-15 22:37 UTCEG score recompute
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 09:35 UTCEG score recompute
  4. 2026-07-14 20:31 UTCEG score recompute
  5. 2026-07-14 20:30 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-15643?
CVE-2026-15643 is a high vulnerability published on July 14, 2026. 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…
When was CVE-2026-15643 disclosed?
CVE-2026-15643 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15643 actively exploited?
CVE-2026-15643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15643?
CVE-2026-15643 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-15643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15643, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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