Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, the NONET parse option, which Nokogiri turns on by default for Nokogiri::XML::Schema (see CVE-2020-26247), was not correctly enforced on the JRuby implementation. As a result, a schema parsed with default options could still cause external resources to be fetched over the network, potentially enabling SSRF or XXE attacks. This vulnerability is fixed in 1.19.4.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57234.json",
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-178",
"CWE-184",
"CWE-611"
]
}{
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"cpe": "cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.19.4"
}
]
}