libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow_CVE-2026-49346

{
    "lastseen": "",
    "description": "libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.",
    "published": "2026-06-19T20:12:14.958Z",
    "modified": "2026-06-19T20:12:14.958Z",
    "type": "cve",
    "title": "libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow",
    "source": "GitHub_M",
    "references": "https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86\nhttps://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8",
    "id": "CVE-2026-49346",
    "bulletinFamily": "",
    "cwe": [
        "CWE-190"
    ],
    "cvelist": null,
    "sourceData": "strukturag libde265 < 1.1.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "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": "libde265",
    "version": "< 1.1.0",
    "vendor": "strukturag",
    "ai_description": "",
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    "ai_score": 0
}