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💎 RubyGems

GHSA-gx8x-g87m-h5q6

HIGH

Denial of Service (DoS) in Nokogiri on JRuby

Published
Apr 11, 2022
Updated
Dec 5, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
💎nokogiri

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

Summary

Nokogiri v1.13.4 updates the vendored org.cyberneko.html library to 1.9.22.noko2 which addresses CVE-2022-24839. That CVE is rated 7.5 (High Severity).

See GHSA-9849-p7jc-9rmv for more information.

Please note that this advisory only applies to the JRuby implementation of Nokogiri < 1.13.4.

Mitigation

Upgrade to Nokogiri >= 1.13.4.

Impact

CVE-2022-24839 in nekohtml

  • Severity: High 7.5
  • Type: CWE-400 Uncontrolled Resource Consumption
  • Description: The fork of org.cyberneko.html used by Nokogiri (Rubygem) raises a java.lang.OutOfMemoryError exception when parsing ill-formed HTML markup.
  • See also: GHSA-9849-p7jc-9rmv

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsnokogiriall versions1.13.4

Detection & mitigation playbook

Open-source dependency
  1. Detect

    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.

  2. Fix

    Update nokogiri to 1.13.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gx8x-g87m-h5q6 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-gx8x-g87m-h5q6 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-gx8x-g87m-h5q6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Summary Nokogiri `v1.13.4` updates the vendored `org.cyberneko.html` library to `1.9.22.noko2` which addresses [CVE-2022-24839](https://github.com/sparklemotion/nekohtml/security/advisories/GHSA-9849-p7jc-9rmv). That CVE is rated 7.5 (High Severity). See [GHSA-9849-p7jc-9rmv](https://github.com/sparklemotion/nekohtml/security/advisories/GHSA-9849-p7jc-9rmv) for more information. Please note that this advisory only applies to the **JRuby** implementation of Nokogiri `< 1.13.4`. ## Mitigation Upgrade to Nokogiri `>= 1.13.4`. ## Impact ### [CVE-2022-24839](https://github.com/sparklemo
O3 Security · Impact-Aware SCA

Is GHSA-gx8x-g87m-h5q6 in your dependencies?

O3 detects GHSA-gx8x-g87m-h5q6 across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.