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Fencer Vulns
high 7.5

CVE-2022-24839 json

Uncontrolled Resource Consumption in org.cyberneko.html (nokogiri fork)

published 2022-04-11 4 y ago modified 2026-06-17 4 mo ago also GHSA-9849-p7jc-9rmv , EUVD-2023-1761

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

org.cyberneko.html is an html parser written in Java. The fork of `org.cyberneko.html` used by Nokogiri (Rubygem) raises a `java.lang.OutOfMemoryError` exception when parsing ill-formed HTML markup. Users are advised to upgrade to `>= 1.9.22.noko2`. Note: The upstream library `org.cyberneko.html` is no longer maintained. Nokogiri uses its own fork of this library located at https://github.com/sparklemotion/nekohtml and this CVE applies only to that fork. Other forks of nekohtml may have a similar vulnerability.

Patch / fix

  • maven org.nokogiri:nekohtml 1.9.22.noko2
  • nekohtml_project nekohtml 1.9.22.noko2
  • nekohtml Debian 14, Debian 13, Debian 12 1.9.22.noko2-0.1

debian advisories DEBIAN-CVE-2022-24839

  • rubygem-nokogiri openSUSE Tumbleweed 1.18.9-1.4
  • rubygem-nokogiri openSUSE Tumbleweed 1.18.2-1.1
  • rubygem-nokogiri openSUSE Tumbleweed 1.15.5-1.5
  • rubygem-nokogiri openSUSE Tumbleweed 1.13.4-1.1
  • ruby3.2-rubygem-nokogiri openSUSE Tumbleweed 1.13.9-1.7

opensuse advisories openSUSE-SU-2026:10356-1openSUSE-SU-2025:14697-1openSUSE-SU-2024:14174-1openSUSE-SU-2024:11999-1openSUSE-SU-2024:13165-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-24839 updated cvss 7.5

nokogiri: Uncontrolled Resource Consumption in org.cyberneko.html (nokogiri fork)

  • Red Hat CloudForms Management Engine 5 rubygem-nokogiri
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6 tfm-rubygem-nokogiri, tfm-ror51-rubygem-nokogiri, tfm-ror52-rubygem-nokogiri
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

2.17% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.nokogiri:nekohtml
<1.9.22.noko2
1.9.22.noko2

Affected products

  • sparklemotion nekohtml

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.