{"id":"CVE-2026-57234","aliases":["GHSA-8678-w3jw-xfc2"],"url":"https://o3.security/vulnerability/CVE-2026-57234","summary":"Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247","details":"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.","published":"2026-06-25T14:30:20.478Z","modified":"2026-08-12T03:51:15.428729815Z","cvss":{"score":2.6,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N"},"epss":{"score":0.00198,"percentile":0.09684,"asOf":"2026-09-07"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"nokogiri","fixedVersion":"1.19.4"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57234.json"},{"type":"ADVISORY","url":"https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-8678-w3jw-xfc2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57234"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.428729815Z"}}