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BREW-RECON-NG-CVE-2024-49766 (GHSA-F9VJ-2WH5-FJ8J)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:32 – Updated: 2026-09-10 01:05 – Source website
VLAI
Summary
Werkzeug safe_join not safe on Windows
Details

On Python < 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python >= 3.11, or not using Windows, are not vulnerable.

Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "werkzeug",
        "resource_purl": "pkg:pypi/werkzeug@3.1.4",
        "upstream_fixed_in": "3.0.6"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "recon-ng",
        "purl": "pkg:brew/recon-ng"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.2_3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/werkzeug@3.1.4",
        "name": "werkzeug",
        "resource": "werkzeug",
        "strategy": "registry",
        "subject_version": "3.1.4"
      }
    ]
  },
  "details": "On Python \u003c 3.11 on Windows, `os.path.isabs()` does not catch UNC paths like `//server/share`. Werkzeug\u0027s `safe_join()` relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable.",
  "id": "BREW-recon-ng-CVE-2024-49766",
  "modified": "2026-09-10T01:05:54Z",
  "published": "2026-08-13T17:32:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49766"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pallets/werkzeug"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/werkzeug/releases/tag/3.0.6"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250131-0005"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Werkzeug safe_join not safe on Windows",
  "upstream": [
    "GHSA-f9vj-2wh5-fj8j",
    "CVE-2024-49766",
    "PYSEC-2026-2045"
  ]
}



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