jq –rawfile invalid-state reuse after String too long causes heap-buffer-overflow_CVE-2026-49839

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    "lastseen": "",
    "description": "jq is a command-line JSON processor. Prior to 1.8.2,` jq --rawfile` can turn a handled oversized-string error into invalid-state reuse and a real heap out-of-bounds write in assertion-disabled builds. When jv_load_file(raw=1) reads an attacker-controlled file, it repeatedly appends file chunks to the same jv string accumulator. Once jv_string_append_buf() returns jv_invalid_with_msg(\"String too long\"), the raw-file loop does not stop. If the file contains at least one more byte, the next loop iteration appends a new chunk to an object that is already invalid. With assertions enabled this aborts in jvp_string_ptr(). With assertions disabled, the invalid object is interpreted as a string object and ASan reports heap-buffer-overflow. This vulnerability is fixed in 1.8.2.",
    "published": "2026-06-25T17:17:46.181Z",
    "modified": "2026-06-25T17:55:27.488Z",
    "type": "cve",
    "title": "jq --rawfile invalid-state reuse after String too long causes heap-buffer-overflow",
    "source": "GitHub_M",
    "references": "https://github.com/jqlang/jq/security/advisories/GHSA-cfh2-vwfq-qfmm",
    "id": "CVE-2026-49839",
    "bulletinFamily": "",
    "cwe": [
        "CWE-787"
    ],
    "cvelist": null,
    "sourceData": "jqlang jq < 1.8.2",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
        "version": "3.1"
    },
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    "href": "",
    "category_name": "CVE",
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    "product": "jq",
    "version": "< 1.8.2",
    "vendor": "jqlang",
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