GHSA-r95h-9x8f-r3f7
Nokogiri updates packaged libxml2 to v2.12.7 to resolve CVE-2024-34459
Blast Radius
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Description
Summary
Nokogiri v1.16.5 upgrades its dependency libxml2 to 2.12.7 from 2.12.6.
libxml2 v2.12.7 addresses CVE-2024-34459:
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/720
- patched by https://gitlab.gnome.org/GNOME/libxml2/-/commit/2876ac53
Impact
There is no impact to Nokogiri users because the issue is present only in libxml2's xmllint tool which Nokogiri does not provide or expose.
Timeline
- 2024-05-13 05:57 EDT, libxml2 2.12.7 release is announced
- 2024-05-13 08:30 EDT, nokogiri maintainers begin triage
- 2024-05-13 10:05 EDT, nokogiri v1.16.5 is released and this GHSA made public
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 💎RubyGems | nokogiri | all versions | 1.16.5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nokogiri. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update nokogiri to 1.16.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r95h-9x8f-r3f7 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-r95h-9x8f-r3f7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-r95h-9x8f-r3f7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-r95h-9x8f-r3f7 in your dependencies?
O3 detects GHSA-r95h-9x8f-r3f7 across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.