CVE-2026-15415 Path traversal and arbitrary file write in the workflow linters of aws-healthomics-mcp-server
An attacker can write arbitrary files outside the intended directory via path traversal in the workflow linters of the AWS HealthOmics MCP Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-15415?
CVE-2026-15415 is a medium-severity path traversal vulnerability in aws-healthomics-mcp-server, published on 17 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-23
Which versions are affected by CVE-2026-15415?
How do I fix CVE-2026-15415?
No fix has been published for CVE-2026-15415 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-15415 being exploited?
There is no known exploitation of CVE-2026-15415 in the wild and no public exploit code.