PT-2026-34592 · Psi 4Ward · Psitransfer

Published 2026-04-23 · Updated 2026-04-23 · CVE-2026-41180

NVD

CVSS v3.1

7.5

High

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-41180

Affected Products

Psitransfer

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-41180 · Security Note
• https://github.com/psi-4ward/psitransfer/commit/8b547bf3e09757122efa00aab90281e3915aa0c6 · Note
• https://github.com/psi-4ward/psitransfer/releases/tag/v2.4.3 · Note
• https://github.com/psi-4ward/psitransfer/security/advisories/GHSA-533q-w4g6-5586 · Note