Description
org.cyberneko.html is an html parser written in Java. The fork of `org.cyberneko.html` used by Nokogiri (Rubygem) raises a `java.lang.OutOfMemoryError` exception when parsing ill-formed HTML markup. Users are advised to upgrade to `>= 1.9.22.noko2`. Note: The upstream library `org.cyberneko.html` is no longer maintained. Nokogiri uses its own fork of this library located at https://github.com/sparklemotion/nekohtml and this CVE applies only to that fork. Other forks of nekohtml may have a similar vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sparklemotion | nekohtml | < 1.9.22.noko2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nekohtml | 1.9.22.noko2-0.1 | — |
| Debian 13 | nekohtml | 1.9.22.noko2-0.1 | — |
| Debian 12 | nekohtml | 1.9.22.noko2-0.1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nekohtml | No fix yet | — |
| Ubuntu 26.04 LTS | nekohtml | No fix yet | — |
| Ubuntu 25.10 | nekohtml | No fix yet | — |
| Ubuntu 24.04 LTS | nekohtml | No fix yet | — |
| Ubuntu 22.04 LTS | nekohtml | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | nekohtml | No fix yet | — |
| Ubuntu 18.04 LTS | nekohtml | No fix yet | — |
| Ubuntu 16.04 LTS | nekohtml | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ruby3.2-rubygem-nokogiri | 1.13.9-1.7 | openSUSE-SU-2024:13165-1 |
| openSUSE Tumbleweed | rubygem-nokogiri | 1.13.4-1.1 | openSUSE-SU-2026:10356-1, openSUSE-SU-2025:14697-1, openSUSE-SU-2024:14174-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.nokogiri:nekohtml | < 1.9.22.noko2 | 1.9.22.noko2 | GHSA-9849-p7jc-9rmv |
Advisories 11
- openSUSE-SU-2026:10356-1 ruby4.0-rubygem-nokogiri-1.18.9-1.4 on GA media SUSE / openSUSE Security Updates · Mar 14, 2026
- openSUSE-SU-2025:14697-1 ruby3.4-rubygem-nokogiri-1.18.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13165-1 ruby3.2-rubygem-nokogiri-1.13.9-1.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11999-1 ruby3.1-rubygem-nokogiri-1.13.4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14174-1 ruby3.3-rubygem-nokogiri-1.15.5-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0671 Atlassian Jira Software: Mehrere Schwachstellen ermöglichen Codeausführung und DoS BSI CERT-Bund (WID) · Nov 24, 2024
- WID-SEC-2024-0888 Oracle Systems: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 16, 2024
- WID-SEC-2023-0809 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 19, 2024
- WID-SEC-2023-2674 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 26, 2023
- WID-SEC-2023-1017 Oracle Financial Services Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 18, 2023
- WID-SEC-2023-0122 Oracle Supply Chain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 17, 2023