CVE-2020-26247
2.6 · LOWOverview
CVE-2020-26247 is a low-severity vulnerability affecting nokogiri nokogiri. It was published on December 30, 2020 and has a CVSS 3.1 base score of 2.6 (LOW).
This vulnerability has a CVSS 3.1 base score of 2.6, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4.
Remediation
Check the references section for vendor advisories and patches from nokogiri. Update nokogiri to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nokogiri | nokogiri | >= 0, < 1.11.0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-26247?
CVE-2020-26247 is a low-severity vulnerability affecting nokogiri nokogiri. It was published on December 30, 2020 and has a CVSS 3.1 base score of 2.6 (LOW).
How severe is CVE-2020-26247?
This vulnerability has a CVSS 3.1 base score of 2.6, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-26247?
Check the references section for vendor advisories and patches from nokogiri. Update nokogiri to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-26247?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-26247 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related LOW CVEs from 2020
View all →Vulnerability in the Oracle Applications DBA component of Oracle Database Server. Supported versions
Vulnerability in the Oracle Applications DBA component of Oracle Database Server. Supported versions
Vulnerability in the Core RDBMS component of Oracle Database Server. Supported versions that are aff
NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration fi
In NetHack before 3.6.6, some out-of-bound values for the hilite_status option can be exploited. Net
A flaw was found in Ansible 2.7.16 and prior, 2.8.8 and prior, and 2.9.5 and prior when a password i
A flaw was found in Ansible Engine when the module package or service is used and the parameter 'use
A flaw was found in Ansible Engine when using Ansible Vault for editing encrypted files. When a user
There is an improper integrity checking vulnerability on some huawei products. The software of the a
Versiant LYNX Customer Service Portal (CSP), version 3.5.2, is vulnerable to stored cross-site scrip
An information exposure vulnerability in the logging component of Palo Alto Networks Global Protect
Periscope BuySpeed version 14.5 is vulnerable to stored cross-site scripting, which could allow a lo