Description
Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sparklemotion | nokogiri | >= 1.13.8, < 1.13.10 | — |
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 | ruby-nokogiri | 1.13.10+dfsg-1 | — |
| Debian 13 | ruby-nokogiri | 1.13.10+dfsg-1 | — |
| Debian 12 | ruby-nokogiri | 1.13.10+dfsg-1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ruby3.2-rubygem-nokogiri | 1.15.4-1.1 | openSUSE-SU-2024:13440-1 |
| openSUSE Tumbleweed | rubygem-nokogiri | 1.15.5-1.5 | openSUSE-SU-2026:10356-1, openSUSE-SU-2025:14697-1, openSUSE-SU-2024:14174-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.23 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.22 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.21 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.20 | ruby-nokogiri | 1.13.10-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.18 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.17 | ruby-nokogiri | 1.13.10-r0 | — |
| Alpine v3.16 | ruby-nokogiri | 1.13.10-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | nokogiri | >= 1.13.8, < 1.13.10 | 1.13.10 | GHSA-qv4q-mr5r-qprj |
Advisories 4
- 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-2024:14174-1 ruby3.3-rubygem-nokogiri-1.15.5-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13440-1 ruby3.2-rubygem-nokogiri-1.15.4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026