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HIGH severity

Denial of Service (DoS) in Nokogiri on JRubyGHSA-gx8x-g87m-h5q6

HIGHFix: sparklemotion/nekohtml@a800fce

GHSA-gx8x-g87m-h5q6 is a high-severity (CVSS 7.5) vulnerability in nokogiri. A fix is available for nokogiri — see the affected versions and patch details below.

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Dec 5, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

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 versions1.13.4bundle update nokogiri --conservative

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, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  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

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

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

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Denial of Service (DoS) in Nokogiri on JRuby (High 7.5)