OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in buffer allocation_CVE-2026-43905

{
    "lastseen": "",
    "description": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, jpeg2000input.cpp:395 computes buffer size as const int bufsize = w * h * ch * buffer_bpp using signed 32-bit arithmetic. When the product exceeds INT_MAX, the result wraps to 0 or a small value. m_buf.resize() allocates an undersized buffer, and subsequent pixel write loops cause heap overflow. Conditional on USE_OPENJPH build flag. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.",
    "published": "2026-05-14T19:09:18.280Z",
    "modified": "2026-05-14T19:37:10.139Z",
    "type": "cve",
    "title": "OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in buffer allocation",
    "source": "GitHub_M",
    "references": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-pj45-cf3g-28gq",
    "id": "CVE-2026-43905",
    "bulletinFamily": "",
    "cwe": [
        "CWE-190"
    ],
    "cvelist": null,
    "sourceData": "AcademySoftwareFoundation OpenImageIO < 3.0.18.0\nAcademySoftwareFoundation OpenImageIO >= 3.1.4.0-beta, < 3.1.13.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "OpenImageIO",
    "version": "< 3.0.18.0",
    "vendor": "AcademySoftwareFoundation",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}