{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-82522",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-29T17:20:57.081Z",
        "datePublished": "2026-09-02T17:37:47.649Z",
        "dateUpdated": "2026-09-02T18:01:58.760Z"
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                "dateUpdated": "2026-09-02T17:37:47.649Z"
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            "title": "libjxl < 0.12.0 Container Box Parser Integer Underflow via 32-bit Size Truncation",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "libjxl before 0.12 contains an integer underflow vulnerability in the container box parser that allows remote attackers to inject arbitrary metadata by exploiting 64-bit box size truncation to size_t on 32-bit platforms. Attackers can supply a crafted JPEG XL file causing the decoder to parse attacker-controlled codestream bytes as phantom box headers, enabling injection of arbitrary metadata (Exif, XMP, IPTC, JUMBF) and potential out-of-bounds reads."
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            "datePublic": "2026-07-01T00:00:00.000Z",
            "problemTypes": [
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                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-681",
                            "description": "Incorrect Conversion between Numeric Types",
                            "type": "CWE"
                        }
                    ]
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            "affected": [
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                    "vendor": "libjxl",
                    "product": "libjxl",
                    "packageURL": "pkg:github/libjxl/libjxl",
                    "repo": "https://github.com/libjxl/libjxl",
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                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
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                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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                        "userInteraction": "REQUIRED",
                        "scope": "UNCHANGED",
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            ],
            "references": [
                {
                    "url": "https://github.com/libjxl/libjxl/releases/tag/v0.12.0",
                    "name": "Release Notes",
                    "tags": [
                        "release-notes"
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                },
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                    "url": "https://github.com/libjxl/libjxl/pull/4885",
                    "name": "Pull Request",
                    "tags": [
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                {
                    "url": "https://github.com/libjxl/libjxl/commit/22ad80af1454f0444ea34115e49ed40517147d68",
                    "name": "Patch Commit",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/libjxl-container-box-parser-integer-underflow-via-32-bit-size-truncation",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Ali Raza (@locus-x64)",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "vulncheck"
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        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-02T18:01:40.950570Z",
                                "id": "CVE-2026-82522",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
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