Is CVE-2020-26247 actively exploited?

CVE-2020-26247 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2020-26247?

CVE-2020-26247 has a CVSS score of 2.6 (LOW severity). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

How do I patch CVE-2020-26247?

Patch guidance is available from nokogiri security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-26247.

CVE-2020-26247 - remediation guidance & executive summary

Q: Which products are affected by CVE-2020-26247?

6 products: nokogiri nokogiri, nokogiri nokogiri, nokogiri nokogiri, nokogiri nokogiri, debian debian linux, and 1 more.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
Attack Vector: network
Complexity: high
Privileges: low
User Action: required
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none
Weaknesses: CWE-611 · XML External Entity (XXE)CWE-611 · XML External Entity (XXE)

Metadata

Primary Vendor: NOKOGIRI
Published: 12/30/2020
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

nokogiri : nokogirinokogiri : nokogirinokogiri : nokogirinokogiri : nokogiridebian : debian_linuxdebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD