Halo: Path Traversal in Backup Download Leads to Arbitrary File Read_CVE-2026-55439

{
    "lastseen": "",
    "description": "Halo is an open source website building tool. Prior to 2.24.3, a path traversal vulnerability in the backup download endpoint allows authenticated administrators to read arbitrary files from the server filesystem. The backup download endpoint (GET /apis/console.api.migration.halo.run/v1alpha1/backups/{name}/files/{filename}) in MigrationServiceImpl.download() resolves the backup filename via Path.resolve() without validating that the resolved path stays within the designated backups directory. Also, the Backup creation endpoint (POST /apis/migration.halo.run/v1alpha1/backups) does not sanitize the status fields during creation This vulnerability is fixed in 2.24.3.",
    "published": "2026-06-25T15:57:08.639Z",
    "modified": "2026-06-25T18:07:36.669Z",
    "type": "cve",
    "title": "Halo: Path Traversal in Backup Download Leads to Arbitrary File Read",
    "source": "GitHub_M",
    "references": "https://github.com/halo-dev/halo/security/advisories/GHSA-h8wj-chr2-hf66\nhttps://github.com/halo-dev/halo/issues/10064",
    "id": "CVE-2026-55439",
    "bulletinFamily": "",
    "cwe": [
        "CWE-22"
    ],
    "cvelist": null,
    "sourceData": "halo-dev halo < 2.24.3",
    "sourceHref": "",
    "cvss": {
        "score": 5.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
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        "confidentialityImpact": "",
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "halo",
    "version": "< 2.24.3",
    "vendor": "halo-dev",
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}