CVE•Published 2026-06-25•Modified 2026-06-26•0 articles on news•4 live references•NVD data

CVE-2026-57234Nokogiri · Nokogiri

Vulnerability data via NVD (ingested)

CVSS v3.1

2.6

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

EPSS percentile

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Weaknesses (CWE)

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

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.

Timeline

Published 2026-06-25

Modified 2026-06-26

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-57234

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Nokogiri Nokogiri"

All exposed Nokogiri Nokogiri instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Nokogiri"

HTTP body or banner mentions "Nokogiri" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-57234