HOMEVULNERABILITIESCVE-2026-57234
LOW

CVE-2026-57234

CWE-178Published: June 25, 2026· Updated: Jun 26, 2026

2.6
CVSS v3.1
EPSS:0.17%probability of exploitation in 30 daysPercentile:6.2th

Official 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.

NVD Source

Technical Analysis

CVE-2026-57234 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

Affected Vendors & Products

nokogiri1 product
nokogiri
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

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

All References (1)

→
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-8678-w3jw-xfc2Vendor Advisory

Quick Facts

CVE IDCVE-2026-57234
CVSS Score2.6 / 10
SeverityLOW
WeaknessCWE-178
CISA KEVNo
EPSS (30d)0.17%
Affected1 vendor
PublishedJun 25, 2026

Related CVEs (CWE-178)

CVE-2026-40453
9.9
CVE-2026-47323
9.8
CVE-2026-27587
9.1
CVE-2026-27588
9.1
CVE-2026-46392
8.7
CVE-2026-53721
8.2

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-57234 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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