{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-5422",
        "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "state": "PUBLISHED",
        "assignerShortName": "@huntr_ai",
        "dateReserved": "2026-04-02T12:44:03.302Z",
        "datePublished": "2026-06-02T09:11:15.755Z",
        "dateUpdated": "2026-06-02T12:14:02.747Z"
    },
    "containers": {
        "cna": {
            "title": "Path Traversal in jupyter/jupyter",
            "providerMetadata": {
                "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
                "shortName": "@huntr_ai",
                "dateUpdated": "2026-06-02T09:11:15.755Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip \"..\" from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments."
                }
            ],
            "affected": [
                {
                    "vendor": "jupyter",
                    "product": "jupyter/jupyter",
                    "versions": [
                        {
                            "version": "unspecified",
                            "status": "affected",
                            "versionType": "custom",
                            "lessThanOrEqual": "latest"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://huntr.com/bounties/24a36953-6490-466f-8cb2-a90d1ca56e0f"
                }
            ],
            "metrics": [
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
                        "baseScore": 6.8,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-23 Relative Path Traversal",
                            "cweId": "CWE-23"
                        }
                    ]
                }
            ],
            "source": {
                "advisory": "24a36953-6490-466f-8cb2-a90d1ca56e0f",
                "discovery": "EXTERNAL"
            }
        },
        "adp": [
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                "references": [
                    {
                        "url": "https://huntr.com/bounties/24a36953-6490-466f-8cb2-a90d1ca56e0f",
                        "tags": [
                            "exploit"
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                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-02T12:13:38.058844Z",
                                "id": "CVE-2026-5422",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-02T12:14:02.747Z"
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}