A vulnerability in the LightGlue model loading path of huggingface/transformers version 5.2.0 allows an attacker-controlled model repository to execute arbitrary code during model initialization. The issue arises because the `trust_remote_code` parameter, intended to prevent remote code execution, is overridden by untrusted serialized configuration data in a nested code path. Specifically, when loading a LightGlue model using `AutoModel.from_pretrained()` with `trust_remote_code=False`, the `LightGlueConfig` reads the `trust_remote_code` value from the untrusted `config.json` file and propagates it into nested `AutoConfig.from_pretrained()` calls. This results in the execution of attacker-provided Python modules, even when the victim explicitly disables remote code execution. The vulnerability poses a high risk for environments such as API inference servers, research notebooks, CI/CD pipelines, and model evaluation workers, potentially leading to credential theft, lateral movement, or persistence/backdoor deployment.
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History
Wed, 03 Jun 2026 14:15:00 +0000
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| Description | A vulnerability in the LightGlue model loading path of huggingface/transformers version 5.2.0 allows an attacker-controlled model repository to execute arbitrary code during model initialization. The issue arises because the `trust_remote_code` parameter, intended to prevent remote code execution, is overridden by untrusted serialized configuration data in a nested code path. Specifically, when loading a LightGlue model using `AutoModel.from_pretrained()` with `trust_remote_code=False`, the `LightGlueConfig` reads the `trust_remote_code` value from the untrusted `config.json` file and propagates it into nested `AutoConfig.from_pretrained()` calls. This results in the execution of attacker-provided Python modules, even when the victim explicitly disables remote code execution. The vulnerability poses a high risk for environments such as API inference servers, research notebooks, CI/CD pipelines, and model evaluation workers, potentially leading to credential theft, lateral movement, or persistence/backdoor deployment. | |
| Title | Policy Bypass in LightGlue Nested Config Resolution in huggingface/transformers | |
| Weaknesses | CWE-829 | |
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cvssV3_0
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MITRE
Status: PUBLISHED
Assigner: @huntr_ai
Published:
Updated: 2026-06-03T15:45:36.684Z
Reserved: 2026-03-31T14:26:14.353Z
Link: CVE-2026-5241
Vulnrichment
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NVD
Status : Received
Published: 2026-06-03T14:16:46.337
Modified: 2026-06-03T14:16:46.337
Link: CVE-2026-5241
Redhat
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OpenCVE Enrichment
Updated: 2026-06-03T15:30:26Z