CVE-2026-57234

Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247

State: Published
Severity: 2.6 Low
Published: Jun 25, 2026
Updated: Jun 25, 2026
Reserved: Jun 24, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	2.6 Low	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-178 Improper Handling of Case Sensitivity
CWE-184 Incomplete List of Disallowed Inputs
CWE-611 Improper Restriction of XML External Entity Reference

Affected Products

Product	Versions
nokogirisparklemotion	< 1.19.4Affected

References

https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-8678-w3jw-xfc2

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