Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/1066255?format=api",
    "purl": "pkg:pypi/langchain-core@1.3.1",
    "type": "pypi",
    "namespace": "",
    "name": "langchain-core",
    "version": "1.3.1",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": "1.3.3",
    "latest_non_vulnerable_version": "1.3.3",
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/67824?format=api",
            "vulnerability_id": "VCID-sjb2-w7tj-fqh2",
            "summary": "LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.85 and 1.3.3, LangChain contains older runtime code paths that deserialize run inputs, run outputs, or other application-controlled payloads using overly broad object allowlists. These paths may call load() with allowed_objects=\"all\". This does not enable arbitrary Python object deserialization, but it does allow any trusted LangChain-serializable object to be revived, which is broader than these runtime paths require. As a result, attacker-supplied LangChain serialized constructor dictionaries may cause trusted runtime paths to instantiate classes with untrusted constructor arguments. This vulnerability is fixed in 0.3.85 and 1.3.3.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44843",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00045",
                            "scoring_system": "epss",
                            "scoring_elements": "0.14321",
                            "published_at": "2026-06-14T12:55:00Z"
                        },
                        {
                            "value": "0.00045",
                            "scoring_system": "epss",
                            "scoring_elements": "0.14227",
                            "published_at": "2026-06-11T12:55:00Z"
                        },
                        {
                            "value": "0.00045",
                            "scoring_system": "epss",
                            "scoring_elements": "0.14347",
                            "published_at": "2026-06-13T12:55:00Z"
                        },
                        {
                            "value": "0.00045",
                            "scoring_system": "epss",
                            "scoring_elements": "0.14346",
                            "published_at": "2026-06-12T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44843"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44843",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.2",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44843"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-pjwx-r37v-7724",
                    "reference_id": "GHSA-pjwx-r37v-7724",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "HIGH",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-pjwx-r37v-7724"
                },
                {
                    "reference_url": "https://github.com/langchain-ai/langchain/security/advisories/GHSA-pjwx-r37v-7724",
                    "reference_id": "GHSA-pjwx-r37v-7724",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.2",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        },
                        {
                            "value": "Track",
                            "scoring_system": "ssvc",
                            "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-27T14:06:50Z/"
                        }
                    ],
                    "url": "https://github.com/langchain-ai/langchain/security/advisories/GHSA-pjwx-r37v-7724"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/376083?format=api",
                    "purl": "pkg:pypi/langchain-core@1.3.3",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/langchain-core@1.3.3"
                }
            ],
            "aliases": [
                "CVE-2026-44843",
                "GHSA-pjwx-r37v-7724"
            ],
            "risk_score": 4.0,
            "exploitability": "0.5",
            "weighted_severity": "8.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-sjb2-w7tj-fqh2"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "4.0",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/langchain-core@1.3.1"
}