Arbitrary Code Execution in Language Servers for AWS_CVE-2026-12957

{
    "lastseen": "",
    "description": "Improper trust boundary enforcement in Language Servers for AWS before version 1.65.0 on all supported platforms may allow a for arbitrary code execution. If a local user opens a maliciously crafted workspace, any commands within the project configuration files may be automatically executed. This issue requires the user to trust the workspace when prompted.\n\n\n\nTo remediate this issue, users should upgrade to Language Servers for AWS version 1.65.0 or higher.",
    "published": "2026-06-23T16:02:53.516Z",
    "modified": "2026-06-23T17:50:18.371Z",
    "type": "cve",
    "title": "Arbitrary Code Execution in Language Servers for AWS",
    "source": "AMZN",
    "references": "https://aws.amazon.com/security/security-bulletins/2026-047-aws/\nhttps://github.com/aws/language-servers/security/advisories/GHSA-xhcr-j4j9-3gh7",
    "id": "CVE-2026-12957",
    "bulletinFamily": "",
    "cwe": [
        "CWE-732"
    ],
    "cvelist": null,
    "sourceData": "Amazon Web Services Language Servers for AWS 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.5,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Language Servers for AWS",
    "version": "0",
    "vendor": "Amazon Web Services",
    "ai_description": "Arbitrary code execution vulnerability in Language Servers for AWS due to improper trust boundary enforcement",
    "ai_severity": "High",
    "ai_vendor": "Amazon Web Services",
    "ai_product": "Language Servers for AWS",
    "ai_version": "before 1.65.0",
    "ai_score": 8.5
}