Kitty has an Arbitrary File Write via Symlink Race Condition in File Transmission Protocol_CVE-2026-54055

{
    "lastseen": "",
    "description": "Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.2, a local privilege escalation vulnerability exists in kitty's file transmission protocol where a child process running in the terminal can write to arbitrary files on the filesystem by exploiting a TOCTOU (Time-of-Check-Time-of-Use) race condition between symlink validation and file creation. The `os.open()` call used to create files does not use `O_NOFOLLOW`, allowing an attacker to create a symlink between the initial stat check and the actual file open, causing the write to follow the symlink to an arbitrary destination. Version 0.47.2 fixes the issue.",
    "published": "2026-06-12T20:03:17.907Z",
    "modified": "2026-06-12T20:03:17.907Z",
    "type": "cve",
    "title": "Kitty has an Arbitrary File Write via Symlink Race Condition in File Transmission Protocol",
    "source": "GitHub_M",
    "references": "https://github.com/kovidgoyal/kitty/security/advisories/GHSA-q446-x7q6-vcxh",
    "id": "CVE-2026-54055",
    "bulletinFamily": "",
    "cwe": [
        "CWE-59",
        "CWE-367",
        "CWE-426"
    ],
    "cvelist": null,
    "sourceData": "kovidgoyal kitty < 0.47.2",
    "sourceHref": "",
    "cvss": {
        "score": 5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L",
        "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": "kitty",
    "version": "< 0.47.2",
    "vendor": "kovidgoyal",
    "ai_description": "",
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    "ai_product": "",
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    "ai_score": 0
}