# CVE-2022-29181: ruby-nokogiri: Nokogiri is an open source XML and HTML library for Ruby

CVE-2022-29181 is fixed in ruby-nokogiri on 1 platform, first by ruby-nokogiri 1.10.7+dfsg1-2ubuntu0.1~esm2, released May 20, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-29181
- Priority: High
- CVSS: 8.2 (high)
- EPSS: 0.0323
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 20, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-nokogiri Debian 12.15 (bookworm) | 1.13.7+dfsg-1 | [DEBIAN-CVE-2022-29181](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29181.md) | May 20, 2022 |
| Linux | ruby-nokogiri Debian 13.5 (trixie) | 1.13.7+dfsg-1 | [DEBIAN-CVE-2022-29181](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29181.md) | May 20, 2022 |
| Linux | ruby-nokogiri Debian 14 | 1.13.7+dfsg-1 | [DEBIAN-CVE-2022-29181](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29181.md) | May 20, 2022 |
| Linux | ruby-nokogiri Ubuntu 20.04 LTS (focal) | 1.10.7+dfsg1-2ubuntu0.1~esm2 | [ruby-nokogiri 1.10.7+dfsg1-2ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ruby-nokogiri-1.10.7-dfsg1-2ubuntu0.1-esm2.md) | May 20, 2022 |
| Linux | ruby-nokogiri Ubuntu 22.04.1 LTS (jammy) | 1.13.1+dfsg-2ubuntu0.1~esm1 | [ruby-nokogiri 1.13.1+dfsg-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-nokogiri-1.13.1-dfsg-2ubuntu0.1-esm1.md) | May 20, 2022 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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