CVE-2022-29181 — Improper Handling of Unexpected Data Type in Nokogiri

CWE-241 — Improper Handling of Unexpected Data TypeCWE-843 — Type Confusion9 documents7 sources
Severity
8.2HIGHNVD
OSV4.3
EPSS
4.2%
top 11.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Sparklemotion NokogiriApple MacosNokogiri+2 more
Timeline
PublishedMay 20
Latest updateJul 21

Description

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HExploitability: 3.9 | Impact: 4.2

Affected Packages6 packages

▶debiandebian/ruby-nokogiri< ruby-nokogiri 1.13.7+dfsg-1 (bookworm)
▶NVDnokogiri/nokogiri< 1.13.6
▶RubyGemsnokogiri/nokogiri< 1.13.6
▶CVEListV5sparklemotion/nokogiri< 1.13.6
▶NVDapple/macos13.0 — 13.1

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
ruby-nokogiri vulnerabilities↗2025-07-21
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GHSA
Nokogiri Improperly Handles Unexpected Data Type↗2022-05-23
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OSV
Nokogiri Improperly Handles Unexpected Data Type↗2022-05-23
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OSV
CVE-2022-29181: Nokogiri is an open source XML and HTML library for Ruby↗2022-05-20
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📋Vendor Advisories

4
Ubuntu
Nokogiri vulnerabilities↗2025-07-21
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Apple
CVE-2022-29181: macOS Ventura 13.1↗2022-12-13
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Red Hat
rubygem-nokogiri: Improper Handling of Unexpected Data Type in Nokogiri↗2022-05-19
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Debian
CVE-2022-29181: ruby-nokogiri - Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to vers...↗2022
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