UnratedFix available

DEBIAN-CVE-2026-57437

Type: advisorySource: OSV1 source record

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::XPathContext did not keep its source document alive for garbage collection. If an XPathContext outlived its document and the document was collected, evaluating an XPath expression could read invalid memory and potentially segfault. This is only reachable when application code constructs an XPathContext directly and lets the document become unreachable while continuing to use the context. The normal Document#xpath, #css, and related search methods are not affected, and it is not triggerable by malicious document input. This vulnerability is fixed in 1.19.4.

Announced 25 Jun 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-57437

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-57437

ruby-nokogiri

Source reference: /affected/0/package/name

Affected versions: 1.13.10+dfsg-2
Source reference: /affected/0/versions
1.14.2+dfsg-1
Source reference: /affected/0/versions
1.14.3+dfsg-1
Source reference: /affected/0/versions
1.14.3+dfsg-2
Source reference: /affected/0/versions
1.15.4+dfsg-1
Source reference: /affected/0/versions
1.16.0+dfsg-1
Source reference: /affected/0/versions
1.16.0+dfsg-2
Source reference: /affected/0/versions
1.16.2+dfsg-1
Source reference: /affected/0/versions
1.16.4+dfsg-1
Source reference: /affected/0/versions
1.17.2+dfsg-1~exp1
Source reference: /affected/0/versions
1.18.10+dfsg-1
Source reference: /affected/0/versions
1.18.10+dfsg-2
Source reference: /affected/0/versions
1.18.10+dfsg-3
Source reference: /affected/0/versions
1.18.2+dfsg-1
Source reference: /affected/0/versions
1.19.1+dfsg-1
Source reference: /affected/0/versions
1.19.3+dfsg-1
Source reference: /affected/0/versions
1.19.4+dfsg-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

ruby-nokogiri

Source reference: /affected/1/package/name

Affected versions: 1.18.10+dfsg-1
Source reference: /affected/1/versions
1.18.10+dfsg-2
Source reference: /affected/1/versions
1.18.10+dfsg-3
Source reference: /affected/1/versions
1.18.2+dfsg-1
Source reference: /affected/1/versions
1.19.1+dfsg-1
Source reference: /affected/1/versions
1.19.3+dfsg-1
Source reference: /affected/1/versions
1.19.4+dfsg-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

ruby-nokogiri

Source reference: /affected/2/package/name

Affected versions: 1.18.10+dfsg-1
Source reference: /affected/2/versions
1.18.10+dfsg-2
Source reference: /affected/2/versions
1.18.10+dfsg-3
Source reference: /affected/2/versions
1.18.2+dfsg-1
Source reference: /affected/2/versions
1.19.1+dfsg-1
Source reference: /affected/2/versions
1.19.3+dfsg-1
Source reference: /affected/2/versions
Fixed versions: 1.19.4+dfsg-1
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "ruby-nokogiri",
      "purl": "pkg:deb/debian/ruby-nokogiri?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.13.10+dfsg-2",
      "1.14.2+dfsg-1",
      "1.14.3+dfsg-1",
      "1.14.3+dfsg-2",
      "1.15.4+dfsg-1",
      "1.16.0+dfsg-1",
      "1.16.0+dfsg-2",
      "1.16.2+dfsg-1",
      "1.16.4+dfsg-1",
      "1.17.2+dfsg-1~exp1",
      "1.18.10+dfsg-1",
      "1.18.10+dfsg-2",
      "1.18.10+dfsg-3",
      "1.18.2+dfsg-1",
      "1.19.1+dfsg-1",
      "1.19.3+dfsg-1",
      "1.19.4+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57437.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "ruby-nokogiri",
      "purl": "pkg:deb/debian/ruby-nokogiri?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.18.10+dfsg-1",
      "1.18.10+dfsg-2",
      "1.18.10+dfsg-3",
      "1.18.2+dfsg-1",
      "1.19.1+dfsg-1",
      "1.19.3+dfsg-1",
      "1.19.4+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57437.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.19.4+dfsg-1"
          }
        ]
      }
    ],
    "package": {
      "name": "ruby-nokogiri",
      "purl": "pkg:deb/debian/ruby-nokogiri?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.18.10+dfsg-1",
      "1.18.10+dfsg-2",
      "1.18.10+dfsg-3",
      "1.18.2+dfsg-1",
      "1.19.1+dfsg-1",
      "1.19.3+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57437.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57396 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:13:54 GMT
Publisher date: Thu, 25 Jun 2026 15:16:41 GMT

Read the original announcement