XML External Entity (XXE) Injection Affecting ruby-nokogiri package, versions <1.11.6-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.19% (57th percentile)

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  • Snyk IDSNYK-ALPINE321-RUBYNOKOGIRI-8489460
  • published6 Dec 2024
  • disclosed30 Dec 2020

Introduced: 30 Dec 2020

CVE-2020-26247  (opens in a new tab)
CWE-611  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 ruby-nokogiri to version 1.11.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-nokogiri package and not the ruby-nokogiri package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

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 Scores

version 3.1