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    "cveMetadata": {
        "cveId": "CVE-2026-92449",
        "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
        "state": "PUBLISHED",
        "assignerShortName": "eclipse",
        "dateReserved": "2026-09-23T13:43:04.312Z",
        "datePublished": "2026-10-20T14:51:24.582Z",
        "dateUpdated": "2026-10-20T15:27:55.848Z"
    },
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                "orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
                "shortName": "eclipse",
                "dateUpdated": "2026-10-20T14:51:24.582Z"
            },
            "title": "Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-129",
                            "description": "CWE-129 Improper Validation of Array Index",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-457",
                            "description": "CWE-457 Use of Uninitialized Variable",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-787",
                            "description": "CWE-787 Out-of-bounds Write",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Eclipse Foundation",
                    "product": "Eclipse ThreadX - GUIX",
                    "packageName": "GUIX",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "6.3.0",
                            "lessThanOrEqual": "6.5.1.202602a",
                            "versionType": "semver"
                        },
                        {
                            "status": "unaffected",
                            "version": "6.5.2.202603"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table.\n\n\n\nThe overflowed buffer is allocated by GUIX itself, through `_gx_system_memory_allocator`, rather than supplied by the caller, so the loader corrupts its own arena. The public API `gx_binres_theme_load()` takes no size parameter, so no amount of caller diligence prevents this.\n\n\n\nReproduces in the shipped default configuration; `GX_BINARY_RESOURCE_SUPPORT` is enabled by default.",
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                            "value": "<p>`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table.</p><p>The overflowed buffer is allocated by GUIX itself, through `_gx_system_memory_allocator`, rather than supplied by the caller, so the loader corrupts its own arena. The public API `gx_binres_theme_load()` takes no size parameter, so no amount of caller diligence prevents this.</p><p>Reproduces in the shipped default configuration; `GX_BINARY_RESOURCE_SUPPORT` is enabled by default.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/eclipse-threadx/guix/security/advisories/GHSA-m85v-2ccm-w6gf"
                }
            ],
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                    "cvssV4_0": {
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
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                        "baseScore": 6.8,
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N"
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            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Kimdir01",
                    "type": "reporter"
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            ],
            "source": {
                "discovery": "UNKNOWN"
            },
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        "adp": [
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                            "content": {
                                "timestamp": "2026-10-20T15:27:16.562385Z",
                                "id": "CVE-2026-92449",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                        "Technical Impact": "total"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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