sparklemotion Nokogiri up to 1.13.1 libxml2/libxslt information disclosure

Summaryinfo

A vulnerability classified as problematic was found in sparklemotion Nokogiri up to 1.13.1. This issue affects some unknown processing of the component libxml2/libxslt. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-2022-51000. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in sparklemotion Nokogiri up to 1.13.1. It has been declared as problematic. This vulnerability affects an unknown function of the component libxml2/libxslt. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

Nokogiri before 1.13.2 (CRuby, when using packaged libraries) ships vendored libxml2 2.9.12 and libxslt 1.1.34, which are affected by two upstream CVEs. Via CVE-2021-30560 in libxslt, an application transforming XML with untrusted XSL stylesheets is vulnerable to a denial-of-service attack. Via CVE-2022-23308 in libxml2, an application parsing an untrusted document with parse option DTDVALID set to true and NOENT set to false may be vulnerable to denial of service, memory disclosure, or code execution. Nokogiri 1.13.2 upgrades vendored libxml2 to 2.9.13 and libxslt to 1.1.35.

The advisory is shared for download at github.com. This vulnerability was named CVE-2022-51000 since 08/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 1.13.2 eliminates this vulnerability.

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Productinfo

Vendor

• sparklemotion

Name

• Nokogiri

Version

• 1.13.0
• 1.13.1

Website

• Product: https://github.com/sparklemotion/nokogiri/

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