aehrc Pathling up to 1.x Async Export File path traversal

Summaryinfo

A vulnerability classified as problematic was found in aehrc Pathling up to 1.x. Affected is an unknown function of the component Async Export. Executing a manipulation of the argument File can lead to path traversal. This vulnerability is registered as CVE-2026-47661. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in aehrc Pathling up to 1.x. This vulnerability affects an unknown function of the component Async Export. The manipulation of the argument file with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. CVE summarizes:

Pathling is a set of tools that make it easier to use FHIR and clinical terminology within health data analytics. Prior to version 2.0.0 of Pathling Server, Pathling's `/$result` endpoint allows a caller who can obtain any valid async export job ID to supply `file` parameter values containing path traversal sequences. The handler verifies only the supplied `job` and never normalises or confines the requested `file` path to that job's `jobs/<jobId>` directory before opening it as a filesystem resource. Because async export scratch space lives under the same warehouse database root as persisted resource tables, an attacker can use their own export job to read other files from the warehouse. This is fixed in Pathling Server 2.0.0. As an interim mitigation, disable the async export operations (`pathling.operations.exportEnabled`, `patientExportEnabled`, `groupExportEnabled`, `bulkSubmitEnabled`) or enable authentication and restrict export capability to trusted callers.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-47661 since 05/19/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 2.0.0 eliminates this vulnerability.

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Productinfo

Vendor

• aehrc

Name

• Pathling

Version

• 1.x

Website

• Product: https://github.com/aehrc/pathling/

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