DeepPavlov up to 1.7.0 Model Download untar path traversal

Summaryinfo

A vulnerability labeled as critical has been found in DeepPavlov up to 1.7.0. Affected is the function untar of the component Model Download Handler. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2026-109155. The attack may be performed from remote. There is no available exploit. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in DeepPavlov up to 1.7.0. It has been rated as critical. Affected by this issue is the function untar of the component Model Download Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-109155. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/12/2026). The MITRE ATT&CK project declares the attack technique as T1006.

The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• DeepPavlov

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7.0

Website

• Product: https://github.com/deeppavlov/DeepPavlov/

CPE 2.3info

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CPE 2.2info

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Accepted

• Submit #978673: deeppavlov DeepPavlov 1.13.0 Path Traversal (by github.com)

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