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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-14574",
        "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
        "state": "PUBLISHED",
        "assignerShortName": "eclipse",
        "dateReserved": "2026-07-03T11:09:54.712Z",
        "datePublished": "2026-08-05T10:51:47.869Z",
        "dateUpdated": "2026-08-05T13:05:29.371Z"
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                            "cweId": "CWE-1321",
                            "description": "CWE-1321",
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                    "capecId": "CAPEC-77",
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                            "lang": "en",
                            "value": "CAPEC-77"
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            "affected": [
                {
                    "vendor": "Eclipse Foundation",
                    "product": "Eclipse Theia",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0.7.0",
                            "lessThan": "1.74.0",
                            "versionType": "semver"
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                    ],
                    "defaultStatus": "unaffected"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In Eclipse Theia versions 0.7.0 and up until including 1.73.1, the `PreferenceUtils.merge` function in `@theia/core` recursively merges preference values without rejecting prototype-related keys (`__proto__`, `constructor`, `prototype`). Because this function is invoked by `PreferenceServiceImpl.doResolve` for every preference resolution across scopes (default, user, workspace, folder), a crafted preference value in a workspace settings file (`.theia/settings.json` or `.vscode/settings.json`) can pollute `Object.prototype` when the user opens the workspace, potentially altering application logic across the Theia process.",
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                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/eclipse-theia/theia/security/advisories/GHSA-f3w9-qfw3-xr32"
                },
                {
                    "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/567"
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                {
                    "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/157"
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                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "LOW",
                        "subAvailabilityImpact": "LOW",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.7,
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:L/SA:L"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Wu Junming (https://gitlab.eclipse.org/dremig)",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
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                "references": [
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                        "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/567",
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                            "content": {
                                "timestamp": "2026-08-05T13:04:59.354596Z",
                                "id": "CVE-2026-14574",
                                "options": [
                                    {
                                        "Exploitation": "poc"
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                                        "Automatable": "no"
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                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
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