CVE-2026-15415
Bulletin ID: 2026-060-AWS Scope: AWS Content Type: Important (requires attention) / Informational Publication Date: 07/17/2026 12:45 PM PDT Description: AWS HealthOmics is a HIPAA-eligible service that fully manages the compute, storage, and workflow engine infrastructure required to run bioinformatics analyses at scale for clinical diagnostics, drug discovery, and agricultural research. We identified CVE-2026-15415, where improper limitation of a pathname to a restricted directory in the linting tools of the AWS HealthOmics MCP Server (aws-healthomics-mcp-server) before version 0.0.36 might allow an actor who can influence the MCP agent to write an actor-controlled content to arbitrary locations outside the intended workflow bundle directory, via directory traversal sequences in the workflow_files input. Impacted versions: aws-healthomics-mcp-server <= 0.0.35 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
CSIRTS triage
- What
- Improper limitation of a pathname allows arbitrary file writes.
- Who is affected
- Deployments of aws-healthomics-mcp-server version 0.0.35 and earlier.
- Urgency
- Remediation is important due to potential exploitation of arbitrary file writes.
- Action
- Upgrade to aws-healthomics-mcp-server version 0.0.36 or later.
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Exploitation outlook
- Low exploitation risk0.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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[](https://www.csirts.com/cve/CVE-2026-15415)