GHSA-vvfq-8hwr-qm4m — nokogiri
GHSA-vvfq-8hwr-qm4m is a remote code execution vulnerability in nokogiri. A fix is available for nokogiri — see the affected versions and patch details below.
Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171
Real-World Exposure
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Description
Summary
Nokogiri v1.18.3 upgrades its dependency libxml2 to v2.13.6.
libxml2 v2.13.6 addresses:
- CVE-2025-24928
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847
- CVE-2024-56171
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828
Impact
CVE-2025-24928
Stack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix.
CVE-2024-56171
Use-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of xsd:keyref in combination with recursively defined types that have additional identity constraints.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 💎RubyGems | nokogiri | all versions | 1.18.3bundle update nokogiri --conservative |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nokogiri, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nokogiri to 1.18.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vvfq-8hwr-qm4m 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-vvfq-8hwr-qm4m can be triaged on real exposure rather than presence alone.
Tailored to GHSA-vvfq-8hwr-qm4m. 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-vvfq-8hwr-qm4m in your dependencies?
O3 Security finds GHSA-vvfq-8hwr-qm4m across RubyGems dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.