{
  "schema_version": "1.4.0",
  "id": "GHSA-7wpj-vvmv-pgm8",
  "modified": "2026-07-28T14:44:02Z",
  "published": "2026-07-28T14:44:01Z",
  "aliases": [
    "CVE-2026-54545"
  ],
  "summary": "@wakaru/cli arbitrary file write during bundle unpack",
  "details": "### Impact\n\n`@wakaru/cli` is vulnerable to arbitrary file write when unpacking a crafted JavaScript bundle with `--unpack`.\n\nBundle-controlled module filenames were sanitized before writing extracted modules to the output directory. A crafted filename containing overlapping path traversal characters, such as `....//`, could be transformed into `../` after sanitization. This allowed the final output path to escape the intended output directory.\n\nAn attacker who can cause a user to run `wakaru --unpack` on a malicious bundle may be able to write files outside the selected output directory. Depending on the target path and user environment, this may lead to code execution.\n\nAffected versions: `>=1.0.0 <1.4.0`.\n\n### Patches\n\nThe issue has been patched in `@wakaru/cli@1.4.0`.\n\nUsers should upgrade to:\n\n```sh\nnpm install @wakaru/cli@latest\n```\n\nor specifically:\n```\nnpm install @wakaru/cli@1.4.0\n```\n\n### Workarounds\n\nDo not run `wakaru --unpack` on untrusted or unknown bundles with affected versions.\n\nIf upgrading immediately is not possible, avoid using `--unpack on files that may be attacker-controlled.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@wakaru/cli"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "1.0.0"
            },
            {
              "fixed": "1.4.0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pionxzh/wakaru/security/advisories/GHSA-7wpj-vvmv-pgm8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pionxzh/wakaru/commit/1d30383b20a6f768786b8ada2f1b0945de13c316"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pionxzh/wakaru"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pionxzh/wakaru/releases/tag/v1.4.0"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-28T14:44:01Z",
    "nvd_published_at": null
  }
}