raszi node-tmp up to 0.2.5 Temporary Directory path traversal

Summaryinfo

A vulnerability labeled as critical has been found in raszi node-tmp up to 0.2.5. Impacted is an unknown function of the component Temporary Directory Handler. Executing a manipulation can lead to path traversal. This vulnerability appears as CVE-2026-44705. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in raszi node-tmp up to 0.2.5 and classified as critical. This vulnerability affects an unknown part of the component Temporary Directory Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. CVE summarizes:

tmp is a temporary file and directory creator for node.js. Prior to 0.2.6, the tmp npm package contains a path traversal vulnerability that allows escaping the intended temporary directory when untrusted data flows into the prefix, postfix, or dir options. By embedding traversal sequences (e.g., ../) or path separators in these parameters, attackers can cause files to be created outside the configured temporary base directory at attacker-controlled locations with the privileges of the running process. This vulnerability affects applications that pass user-controlled data to tmp's file/directory creation functions without proper input sanitization. This vulnerability is fixed in 0.2.6.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-44705 since 05/07/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

It is declared as proof-of-concept.

Upgrading to version 0.2.6 eliminates this vulnerability.

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Productinfo

Vendor

• raszi

Name

• node-tmp

Version

• 0.2.0
• 0.2.1
• 0.2.2
• 0.2.3
• 0.2.4
• 0.2.5

Website

• Product: https://github.com/raszi/node-tmp/

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