DeepPavlov up to 1.7.0 multitask_preprocessor.py MultiTaskPipelinePreprocessor.__init__ preprocessor code injection

Summaryinfo

A vulnerability described as problematic has been identified in DeepPavlov up to 1.7.0. This impacts the function MultiTaskPipelinePreprocessor.__init__ of the file deeppavlov/models/preprocessors/multitask_preprocessor.py. Such manipulation of the argument preprocessor leads to code injection. This vulnerability is listed as CVE-2026-112100. The attack may be performed from remote. In addition, an exploit is available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in DeepPavlov up to 1.7.0. Affected by this issue is the function MultiTaskPipelinePreprocessor.__init__ of the file deeppavlov/models/preprocessors/multitask_preprocessor.py. The manipulation of the argument preprocessor with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-112100. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The exploit is available at github.com. It is declared as proof-of-concept. 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.

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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/

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Accepted

• Submit #1012812: DeepPavlov 1.2.0 - 1.7.0 (latest PyPI release) and master @ commit 5f9fbed Code Injection (by Dem0000000)

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