CVE-2026-47661 Pathling has path traversal in $result endpoint that allows arbitrary warehouse file read
Attackers with valid job IDs can read arbitrary warehouse files via path traversal in the $result endpoint, exposing sensitive health data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-47661?
CVE-2026-47661 is a high-severity path traversal vulnerability in aehrc pathling, published on 7 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Pathling is a set of tools that make it easier to use FHIR and clinical terminology within health data analytics. Prior to version 2.0.0 of Pathling Server, Pathling's `/$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.
Weakness: CWE-22
Which versions are affected by CVE-2026-47661?
How do I fix CVE-2026-47661?
No fix has been published for CVE-2026-47661 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-2026-47661 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47661 exists.
Sources
Also known as GHSA-8w85-f63v-3wh6.