gonic has arbitrary file write in createPlaylist: any authenticated user can write playlist M3U content to attacker-controlled path on the host_CVE-2026-49340

{
    "lastseen": "",
    "description": "gonic is a music streaming server / free-software subsonic server API implementation. Prior to version 0.21.0, a logic error in `ServeCreateOrUpdatePlaylist` allows any authenticated Subsonic user (including non-admin) to write playlist M3U content to an attacker-controlled absolute filesystem path on the gonic host, and to create intermediate directories with `0o777` permissions. The bug is independent of CVE-2026-49338 and CVE-2026-49339. It is an unreachable guard clause combined with no path containment in `Store.Write`. Version 0.21.0 patches the issue.",
    "published": "2026-06-19T19:11:20.305Z",
    "modified": "2026-06-19T19:11:20.305Z",
    "type": "cve",
    "title": "gonic has arbitrary file write in createPlaylist: any authenticated user can write playlist M3U content to attacker-controlled path on the host",
    "source": "GitHub_M",
    "references": "https://github.com/sentriz/gonic/security/advisories/GHSA-4gxv-p5g5-j7w7",
    "id": "CVE-2026-49340",
    "bulletinFamily": "",
    "cwe": [
        "CWE-22",
        "CWE-697",
        "CWE-732"
    ],
    "cvelist": null,
    "sourceData": "sentriz gonic < 0.21.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "gonic",
    "version": "< 0.21.0",
    "vendor": "sentriz",
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    "ai_score": 0
}