# CVE-2026-41180

> Vulnerability · severity: **HIGH** (CVSS 7.5).

## Description

PsiTransfer is an open source, self-hosted file sharing solution. Prior to version 2.4.3, the upload PATCH flow under `/files/:uploadId` validates the mounted request path using the still-encoded `req.path`, but the downstream tus handler later writes using the decoded `req.params.uploadId`. In deployments that use a supported custom `PSITRANSFER_UPLOAD_DIR` whose basename prefixes a startup-loaded JavaScript path, such as `conf`, an unauthenticated attacker can create `config.<NODE_ENV>.js` in the application root. The attacker-controlled file is then executed on the next process restart. Version 2.4.3 contains a patch.

## Key facts

- **CVE ID:** CVE-2026-41180
- **Published:** 2026-04-23
- **CVSS severity:** HIGH
- **CVSS base score:** 7.5
- **CWE codes:** CWE-22

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41180

## Citation

> AI Analytics. CVE-2026-41180. Retrieved 2026-07-24 from https://api.ai-analytics.org/cve/CVE-2026-41180. Derived from NIST NVD. Licensed CC0.

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