ubuntu-cve-2026-57435
Vulnerability from osv_ubuntu
Published
2026-06-25 15:16
Modified
2026-06-29 21:23
Summary
Details

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri’s CRuby native extension could leave a Ruby wrapper pointing to freed memory when replacing the value of an XML attribute. If Ruby code had already accessed an attribute child node, Nokogiri::XML::Attr#value= could free the underlying native child node while the wrapper remained reachable through the document node cache. A later use of the freed child node or a Ruby GC mark could dereference an invalid pointer, causing an invalid read and a possible segfault. This vulnerability is fixed in 1.19.4.

Severity
1.7 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.6.1+ds-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.6.1+ds-1ubuntu0.1~esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.9-2",
        "1.5.9-3",
        "1.6.0-1",
        "1.6.1+ds-1",
        "1.6.1+ds-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.6.7.2-3ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.6.7.2-3ubuntu0.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.6.2+ds-2build2",
        "1.6.6.3-1",
        "1.6.7-1",
        "1.6.7.1-1",
        "1.6.7.2-3",
        "1.6.7.2-3build1",
        "1.6.7.2-3ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.8.2-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.8.2-1ubuntu0.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.0-1",
        "1.8.1-1",
        "1.8.1-1build1",
        "1.8.2-1build1",
        "1.8.2-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.10.7+dfsg1-2ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.10.7+dfsg1-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.3+dfsg1-2",
        "1.10.4+dfsg1-1",
        "1.10.7+dfsg1-1",
        "1.10.7+dfsg1-2",
        "1.10.7+dfsg1-2build1",
        "1.10.7+dfsg1-2ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.13.1+dfsg-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.13.1+dfsg-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11.1+dfsg-2ubuntu1",
        "1.11.7+dfsg-3",
        "1.11.7+dfsg-3build1",
        "1.13.1+dfsg-2",
        "1.13.1+dfsg-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.16.2+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.16.2+dfsg-1build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.14.3+dfsg-2",
        "1.16.2+dfsg-1",
        "1.16.2+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.18.2+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.18.2+dfsg-1build1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.16.4+dfsg-1build1",
        "1.18.2+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-nokogiri",
            "binary_version": "1.18.10+dfsg-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "ruby-nokogiri",
        "purl": "pkg:deb/ubuntu/ruby-nokogiri@1.18.10+dfsg-3?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.18.2+dfsg-1build1",
        "1.18.10+dfsg-2",
        "1.18.10+dfsg-3"
      ]
    }
  ],
  "aliases": [],
  "details": "Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri\u2019s CRuby native extension could leave a Ruby wrapper pointing to freed memory when replacing the value of an XML attribute. If Ruby code had already accessed an attribute child node, Nokogiri::XML::Attr#value= could free the underlying native child node while the wrapper remained reachable through the document node cache. A later use of the freed child node or a Ruby GC mark could dereference an invalid pointer, causing an invalid read and a possible segfault. This vulnerability is fixed in 1.19.4.",
  "id": "UBUNTU-CVE-2026-57435",
  "modified": "2026-06-29T21:23:38Z",
  "published": "2026-06-25T15:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-57435"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-57435"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-phwj-rprq-35pp"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-57435"
  ]
}



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