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{"bugzilla": {"description": "transformers: HuggingFace Transformers: Arbitrary code execution via malicious checkpoint file", "id": "2455854", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455854"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-502", "details": ["A flaw was found in HuggingFace Transformers. A remote attacker can exploit this vulnerability by supplying a specially crafted checkpoint file (e.g., `rng_state.pth`). The `_load_rng_state()` method in the `Trainer` class loads this file using `torch.load()` without proper validation, specifically missing the `weights_only=True` parameter. This issue primarily affects systems using PyTorch versions below 2.6. Successful exploitation can lead to arbitrary code execution on the system where the file is loaded."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-1839", "package_state": [{"cpe": "cpe:/a:redhat:lightspeed_core", "fix_state": "Fix deferred", "package_name": "redhat-user-workloads/lightspeed-stack", "product_name": "Lightspeed Core"}, {"cpe": "cpe:/a:redhat:lightspeed_core", "fix_state": "Fix deferred", "package_name": "redhat-user-workloads/rag-tool", "product_name": "Lightspeed Core"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed", "fix_state": "Fix deferred", "package_name": "redhat-user-workloads/lightspeed-ocp-rag", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed", "fix_state": "Fix deferred", 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