Arbitrary file write using cgo pkg-config directive in cmd/go_CVE-2025-61731

{
    "lastseen": "",
    "description": "Building a malicious file with cmd/go can cause can cause a write to an attacker-controlled file with partial control of the file content. The \"#cgo pkg-config:\" directive in a Go source file provides command-line arguments to provide to the Go pkg-config command. An attacker can provide a \"--log-file\" argument to this directive, causing pkg-config to write to an attacker-controlled location.",
    "published": "2026-01-28T19:30:30.844Z",
    "modified": "2026-01-29T16:17:24.194Z",
    "type": "cve",
    "title": "Arbitrary file write using cgo pkg-config directive in cmd/go",
    "source": "Go",
    "references": "https://go.dev/cl/736711\nhttps://go.dev/issue/77100\nhttps://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc\nhttps://pkg.go.dev/vuln/GO-2026-4339",
    "id": "CVE-2025-61731",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Go toolchain cmd/go 0\nGo toolchain cmd/go 1.25.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "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": "cmd/go",
    "version": "0",
    "vendor": "Go toolchain",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}