External Control of File Name or Path Affecting psd-tools package, versions [,1.17.1)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about External Control of File Name or Path vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PYTHON-PSDTOOLS-17933397
- published10 Jul 2026
- disclosed9 Jul 2026
- creditUnknown
Introduced: 9 Jul 2026
NewCVE-2026-49836 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade psd-tools to version 1.17.1 or higher.
Overview
psd-tools is a Python package for working with Adobe Photoshop PSD files as described in specification.
Affected versions of this package are vulnerable to External Control of File Name or Path through the save and open functions. An attacker can write arbitrary files to attacker-chosen paths and read arbitrary files by crafting a malicious PSD file with specially crafted smart-object filenames or descriptors.