Kavita: IDOR in /api/Download/*_CVE-2026-44776

{
    "lastseen": "",
    "description": "Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can download the full file contents, query file sizes, and read metadata for that content. This affects /api/Download/volume-size, /api/Download/chapter-size, /api/Download/series-size, /api/Download/volume, /api/Download/chapter, /api/Download/series, and /api/Chapter. This vulnerability is fixed in 0.9.0.",
    "published": "2026-05-26T17:29:40.897Z",
    "modified": "2026-05-26T18:27:30.186Z",
    "type": "cve",
    "title": "Kavita: IDOR in /api/Download/*",
    "source": "GitHub_M",
    "references": "https://github.com/Kareadita/Kavita/security/advisories/GHSA-x3jq-95xw-gwvr",
    "id": "CVE-2026-44776",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "Kareadita Kavita < 0.9.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Kavita",
    "version": "< 0.9.0",
    "vendor": "Kareadita",
    "ai_description": "",
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    "ai_product": "",
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    "ai_score": 0
}