Vulnerability from bitnami_vulndb
Published
2026-01-31 08:43
Modified
2026-01-31 09:09
Summary
Arbitrary file write using cgo pkg-config directive in cmd/go
Details

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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "golang",
        "purl": "pkg:bitnami/golang"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.24.12"
            },
            {
              "introduced": "1.25.0"
            },
            {
              "fixed": "1.25.6"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-61731"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "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.",
  "id": "BIT-golang-2025-61731",
  "modified": "2026-01-31T09:09:11.750Z",
  "published": "2026-01-31T08:43:38.643Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://go.dev/cl/736711"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/77100"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61731"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-4339"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Arbitrary file write using cgo pkg-config directive in cmd/go"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.