Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/1069686?format=api",
    "purl": "pkg:pypi/pytorch-lightning@2.5.0rc0",
    "type": "pypi",
    "namespace": "",
    "name": "pytorch-lightning",
    "version": "2.5.0rc0",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": "2.6.1",
    "latest_non_vulnerable_version": "2.6.1",
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/71504?format=api",
            "vulnerability_id": "VCID-dpzd-6sun-a7av",
            "summary": "PyTorch-Lightning versions 2.6.0 and earlier contain an insecure deserialization vulnerability (CWE-502) in the checkpoint loading mechanism. The LightningModule.load_from_checkpoint() method, which is commonly used to load saved model states, internally calls torch.load() without setting the security-restrictive weights_only=True parameter. This default behavior allows the deserialization of arbitrary Python objects via the Pickle module. A remote attacker can exploit this by providing a maliciously crafted checkpoint file, leading to arbitrary code execution on the victim's system when the file is loaded.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31221",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00191",
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                            "published_at": "2026-06-12T12:55:00Z"
                        },
                        {
                            "value": "0.00191",
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                            "scoring_elements": "0.40883",
                            "published_at": "2026-06-11T12:55:00Z"
                        },
                        {
                            "value": "0.00206",
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                            "published_at": "2026-06-14T12:55:00Z"
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                            "published_at": "2026-06-13T12:55:00Z"
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                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31221",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
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                            "value": "7.8",
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                        },
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                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
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                },
                {
                    "reference_url": "https://www.notion.so/CVE-2026-31221-35d1e1393188815f8db7c4fd08076639",
                    "reference_id": "CVE-2026-31221-35d1e1393188815f8db7c4fd08076639",
                    "reference_type": "",
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                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
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                        {
                            "value": "Track",
                            "scoring_system": "ssvc",
                            "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-15T18:02:25Z/"
                        }
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                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-75m9-98v2-hjpm",
                    "reference_id": "GHSA-75m9-98v2-hjpm",
                    "reference_type": "",
                    "scores": [
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                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-75m9-98v2-hjpm"
                },
                {
                    "reference_url": "https://github.com/Lightning-AI/pytorch-lightning",
                    "reference_id": "pytorch-lightning",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.8",
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                            "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                        },
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                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
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                        {
                            "value": "Track",
                            "scoring_system": "ssvc",
                            "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-15T18:02:25Z/"
                        }
                    ],
                    "url": "https://github.com/Lightning-AI/pytorch-lightning"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/1069701?format=api",
                    "purl": "pkg:pypi/pytorch-lightning@2.6.1",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/pytorch-lightning@2.6.1"
                }
            ],
            "aliases": [
                "CVE-2026-31221",
                "GHSA-75m9-98v2-hjpm"
            ],
            "risk_score": 4.0,
            "exploitability": "0.5",
            "weighted_severity": "8.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-dpzd-6sun-a7av"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "4.0",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/pytorch-lightning@2.5.0rc0"
}