CVE-2022-29181

Name: CVE-2022-29181
Creator: NVD / NIST
Published: 2022-05-20T19:15:08.203+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 2.89%

Last modified Jun 17, 2026

CVE-2022-29181 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 2.89% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

EPSS Probability

2.89%

85.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nokogiri	Nokogiri	< 1.13.6
Apple	Macos	>= 13.0, < 13.1

References

https://github.com/sparklemotion/nokogiri/commit/83cc451c3f29df397caa890afc3b714eae6ab8f7
https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267Patch, Third Party Advisory
https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6Release Notes, Third Party Advisory
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8mIssue Tracking, Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri
http://seclists.org/fulldisclosure/2022/Dec/23Mailing List, Third Party Advisory
https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267Patch, Third Party Advisory
https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6Release Notes, Third Party Advisory
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8mIssue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/202208-29Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri/Exploit, Third Party Advisory
https://support.apple.com/kb/HT213532Third Party Advisory

Timeline

Published: May 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29181?

How severe is CVE-2022-29181?

CVE-2022-29181 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 2.89% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29181?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29181?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST