Outline has IDOR in document share creation that allows unauthorized access to private documents across workspaces_CVE-2026-41649

{
    "lastseen": "",
    "description": "Outline is a service that allows for collaborative documentation. The `shares.create` API endpoint starting in version 0.86.0 and prior to version 1.7.0 has an insecure direct object reference.. When both `collectionId` and `documentId` are provided in the request, the authorization logic only checks access to the collection, completely ignoring the document. This allows an authenticated attacker to generate a valid public share link for any document on the platform, including documents belonging to other workspaces. The full document contents can then be retrieved via the `documents.info` endpoint. Version 1.7.0 contains a patch.",
    "published": "2026-04-28T20:11:28.283Z",
    "modified": "2026-04-28T20:11:28.283Z",
    "type": "cve",
    "title": "Outline has IDOR in document share creation that allows unauthorized access to private documents across workspaces",
    "source": "GitHub_M",
    "references": "https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7\nhttps://github.com/outline/outline/commit/1b91a295e10f58a1088c54f533773788325ff460\nhttps://github.com/outline/outline/releases/tag/v1.7.0",
    "id": "CVE-2026-41649",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "outline outline >= 0.86.0, < 1.7.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.7,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "outline",
    "version": ">= 0.86.0, < 1.7.0",
    "vendor": "outline",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}