GHSA-XH29-R2W5-WX8M

Vulnerability from github – Published: 2022-05-23 23:15 – Updated: 2025-05-27 14:51
VLAI?
Summary
Nokogiri Improperly Handles Unexpected Data Type
Details

Summary

Nokogiri < v1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers. For CRuby users, this may allow specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory.

Severity

The Nokogiri maintainers have evaluated this as High 8.2 (CVSS3.1).

Mitigation

CRuby users should upgrade to Nokogiri >= 1.13.6.

JRuby users are not affected.

Workarounds

To avoid this vulnerability in affected applications, ensure the untrusted input is a String by calling #to_s or equivalent.

Credit

This vulnerability was responsibly reported by @agustingianni and the Github Security Lab.

Severity ?
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "nokogiri"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-29181"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-241",
      "CWE-843"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-05-23T23:15:15Z",
    "nvd_published_at": "2022-05-20T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nNokogiri `\u003c v1.13.6` does not type-check all inputs into the XML and HTML4 SAX parsers. For CRuby users, this may allow specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory.\n\n### Severity\n\nThe Nokogiri maintainers have evaluated this as **High 8.2** (CVSS3.1).\n\n\n### Mitigation\n\nCRuby users should upgrade to Nokogiri `\u003e= 1.13.6`.\n\nJRuby users are not affected.\n\n\n### Workarounds\n\nTo avoid this vulnerability in affected applications, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.\n\n\n### Credit\n\nThis vulnerability was responsibly reported by @agustingianni and the Github Security Lab.",
  "id": "GHSA-xh29-r2w5-wx8m",
  "modified": "2025-05-27T14:51:05Z",
  "published": "2022-05-23T23:15:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29181"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/commit/83cc451c3f29df397caa890afc3b714eae6ab8f7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2022-29181.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sparklemotion/nokogiri"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202208-29"
    },
    {
      "type": "ADVISORY",
      "url": "https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT213532"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2022/Dec/23"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nokogiri Improperly Handles Unexpected Data Type"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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