# 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.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Aug 2026
- **Updated:** 11 Aug 2026
- **Also known as:** GHSA-8w85-f63v-3wh6

## 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 (Improper Limitation of a Pathname to a Restricted Directory)

## 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.

## Is CVE-2026-47661 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47661 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47661 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47661 exists.

Affected product: aehrc pathling. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47661/ (Markdown: https://insights.sbomify.com/CVE-2026-47661/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47661
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47661
- OSV: https://osv.dev/vulnerability/CVE-2026-47661

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47661/
Summaries are generated and may contain mistakes; the official description above is the record.