CVE-2026-57234: sparklemotion nokogiri · Improper Handling of Case Sensitivity
Affects sparklemotion nokogiriSource CVE Database V5
Mentioned vulnerabilities
Not known to be exploited · CVSS 2.6 Low : upgrade to 1.19.4 when convenient.
Data as of 8 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.19.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 25 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Upgrade sparklemotion nokogiri to 1.19.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| sparklemotionnokogiri | Affected
| Fixed in
|
RubyGemsnokogiripkg:gem/nokogiriOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Nokogiri to version 1.19.4 or later, where the NONET parse option enforcement on JRuby is correctly implemented, mitigating the risk of SSRF and XXE attacks. Patch status is confirmed by the vendor advisory stating the issue is fixed in 1.19.4.
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.