---
title: "CVE-2022-29181\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2022-29181?format=md
keywords: index, follow
---

# CVE-2022-29181

Publication date 20 May 2022

Last updated 22 July 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.2 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2022-29181?format=md#impact-score)

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## 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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ruby-nokogiri | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Ignored end of life, was needs-triage |
| 23.04 lunar | Ignored end of life, was needs-triage |
| 22.10 kinetic | Ignored end of life, was needs-triage |
| 22.04 LTS jammy | Fixed 1.13.1+dfsg-2ubuntu0.1~esm1  Ubuntu Pro |
| 21.10 impish | Ignored end of life |
| 20.04 LTS focal | Fixed 1.10.7+dfsg1-2ubuntu0.1~esm2  Ubuntu Pro |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.2 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | Low |
  | Integrity impact | None |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.2 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29181)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-29181)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-29181)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-29181)

### Related Ubuntu Security Notices (USN)

+ [USN-7659-1](https://usn.ubuntu.com/USN-7659-1)
+ Nokogiri vulnerabilities
+ 21 July 2025

### Other references

* <https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8m>
* <https://github.com/sparklemotion/nokogiri/commit/83cc451c3f29df397caa890afc3b714eae6ab8f7 (v1.13.6)>
* <https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267>
* <https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6>
* <https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri/>
* <https://www.cve.org/CVERecord?id=CVE-2022-29181>