Kitty has a Heap Buffer Overflow in its Graphics Protocol Handler_CVE-2026-33633

{
    "lastseen": "",
    "description": "Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics protocol command with a PNG format declaration (f=100) whose payload exceeds twice the initial buffer capacity. The overflow is attacker-controlled in both length and content, causing DoS and potentially escalation to RCE itself. This issue has been fixed in version 0.47.0.",
    "published": "2026-05-19T17:36:07.762Z",
    "modified": "2026-05-19T17:56:41.989Z",
    "type": "cve",
    "title": "Kitty has a Heap Buffer Overflow in its Graphics Protocol Handler",
    "source": "GitHub_M",
    "references": "https://github.com/kovidgoyal/kitty/security/advisories/GHSA-j68c-v8x4-269g\nhttps://github.com/kovidgoyal/kitty/commit/e9661f0f3afb4e4dbffa509adfb3df3c9780ad34",
    "id": "CVE-2026-33633",
    "bulletinFamily": "",
    "cwe": [
        "CWE-122"
    ],
    "cvelist": null,
    "sourceData": "kovidgoyal kitty < 0.47.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "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": "kitty",
    "version": "< 0.47.0",
    "vendor": "kovidgoyal",
    "ai_description": "",
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    "ai_score": 0
}