ghsa-fhg7-m89q-25r3
Vulnerability from github
Published
2023-01-24 15:36
Modified
2025-10-17 16:52
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
ReDoS Vulnerability in ua-parser-js version
Details

Description:

A regular expression denial of service (ReDoS) vulnerability has been discovered in ua-parser-js.

Impact:

This vulnerability bypass the library's MAX_LENGTH input limit prevention. By crafting a very-very-long user-agent string with specific pattern, an attacker can turn the script to get stuck processing for a very long time which results in a denial of service (DoS) condition.

Affected Versions:

From version 0.7.30 to before versions 0.7.33 / 1.0.33.

Patches:

A patch has been released to remove the vulnerable regular expression, update to version 0.7.33 / 1.0.33 or later.

References:

Regular expression Denial of Service - ReDoS

Credits:

Thanks to @Snyk who first reported the issue.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ua-parser-js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.7.30"
            },
            {
              "fixed": "0.7.33"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "ua-parser-js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.8.0"
            },
            {
              "fixed": "1.0.33"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-25927"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-24T15:36:32Z",
    "nvd_published_at": "2023-01-26T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Description:\nA regular expression denial of service (ReDoS) vulnerability has been discovered in `ua-parser-js`.\n\n### Impact:\nThis vulnerability bypass the library\u0027s `MAX_LENGTH` input limit prevention. By crafting a very-very-long user-agent string with specific pattern, an attacker can turn the script to get stuck processing for a very long time which results in a denial of service (DoS) condition.\n\n### Affected Versions:\nFrom version `0.7.30` to before versions `0.7.33` / `1.0.33`.\n\n### Patches:\nA patch has been released to remove the vulnerable regular expression, update to version `0.7.33` / `1.0.33` or later.\n\n### References:\n[Regular expression Denial of Service - ReDoS](https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS)\n\n### Credits:\nThanks to @Snyk who first reported the issue.",
  "id": "GHSA-fhg7-m89q-25r3",
  "modified": "2025-10-17T16:52:22Z",
  "published": "2023-01-24T15:36:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/faisalman/ua-parser-js/security/advisories/GHSA-fhg7-m89q-25r3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25927"
    },
    {
      "type": "WEB",
      "url": "https://github.com/faisalman/ua-parser-js/commit/a6140a17dd0300a35cfc9cff999545f267889411"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/faisalman/ua-parser-js"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-UAPARSERJS-3244450"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ReDoS Vulnerability in ua-parser-js version"
}


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