CVE-2026-5241

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Source
https://cve.org/CVERecord?id=CVE-2026-5241
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5241.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-5241
Aliases
Downstream
CGA (18)
CLSA (1)
Published
2026-06-03T12:33:10Z
Modified
2026-10-21T02:30:33Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Policy Bypass in LightGlue Nested Config Resolution in huggingface/transformers
Details

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.

Database specific 
{
    "cna_assigner":  "@huntr_ai",
    "cwe_ids":  [
        "CWE-829"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5241.json"
}
References

Affected packages

Git / github.com/huggingface/transformers

Affected ranges

Type
GIT
Repo
https://github.com/huggingface/transformers
Events
Introduced
7d9754a05193eb79b1d86aa744b622b8068008cd
Fixed
676559d5022b74aaa0cee1cee0842b7f27c5320e
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:huggingface:transformers:5.2.0:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "5.2.0"
                },
                {
                    "last_affected":  "5.2.0"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "range":  [
                {
                    "fixed":  "676559d5022b74aaa0cee1cee0842b7f27c5320e"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

5.*
5.2.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5241.json"