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    CVE-2026-57234

    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:Jun 25, 2026
    Last Modified:Jun 26, 2026
    EPS:Jun 25, 2026
    EPSS Score:
    CVSS Score:2.6

    Affected Products

    Vendor
    Sparklemotion
    Product
    Nokogiri

    Exploits

    No exploit reference

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    CVE-2021-47996 (CVSS 7.5) — This CVE ID has been rejected as a duplicate.…
    CVE-2022-50998 (CVSS 7.5) — This CVE ID has been rejected as a duplicate.…
    CVE-2026-57438 (CVSS 2.2) — Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude s…
    CVE-2026-57437 (CVSS 1.7) — Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::…
    CVE-2026-57436 (CVSS 1.7) — Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High