ModelTC LightX2V up to 0.5.0 Tokenizer cosmos3_runner.py AutoTokenizer.from_pretrained auto_map code injection

Summaryinfo

A vulnerability, which was classified as problematic, was found in ModelTC LightX2V up to 0.5.0. Affected by this vulnerability is the function AutoTokenizer.from_pretrained of the file lightx2v/models/runners/cosmos3/cosmos3_runner.py of the component Tokenizer. Such manipulation of the argument auto_map leads to code injection. This vulnerability is listed as CVE-2026-108943. The attack must be carried out locally. 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 was found in ModelTC LightX2V up to 0.5.0 and classified as problematic. Affected by this issue is the function AutoTokenizer.from_pretrained of the file lightx2v/models/runners/cosmos3/cosmos3_runner.py of the component Tokenizer. The manipulation of the argument auto_map 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 shared for download at github.com. This vulnerability is handled as CVE-2026-108943. The exploitation is known to be easy. The attack needs to be approached locally. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.

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.

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

Productinfo

Vendor

• ModelTC

Name

• LightX2V

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5.0

Website

• Product: https://github.com/ModelTC/LightX2V/

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Accepted

• Submit #997679: ModelTC LightX2V up to main commit 8652c6f1c7f12f226c43abbb91d4d4e9290932c2 (release 0.5.0, published 2026-09-10) Code Injection (CWE-94) (by dem0000)

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