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Full vulnerability report · 2022
CVE-2022-24839High confidence

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

sparklemotion · nekohtml

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivenekohtmlUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-1761

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

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.

What

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.

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

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.

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Uncontrolled Resource Consumption → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-400

CWE-400: Uncontrolled Resource Consumption. The product does not properly control the allocation and maintenance of a limited resource.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-400
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2024-0888Oracle Systems: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Oracle Systems ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-2024-0671Atlassian Jira Software: Mehrere Schwachstellen ermöglichen Codeausführung und DoS

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in der Atlassian Jira Software ausnutzen, um beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory
BSI · German · WID-SEC-2023-2674Oracle Fusion Middleware: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-2023-1017Oracle Financial Services Applications: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Financial Services Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-2023-0809IBM QRadar SIEM: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen, Informationen falsch darzustellen, einen Denial of Service Zustand herbeizuführen, Sicherheitsvorkehrungen zu umgehen, einen Cross-Site-Scripting-Angriff durchzuführen oder unbekannte Auswirkungen zu verursachen.

Official advisory
BSI · German · WID-SEC-2023-0122Oracle Supply Chain: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Supply Chain ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0324Multiples vulnérabilités dans Oracle Systems

d?id=CVE-2020-29508 Référence CVE CVE-2020-35163 https://www.cve.org/CVERecord?id=CVE-2020-35163 Référence CVE CVE-2020-35164 https://www.cve.org/CVERecord?id=CVE-2020-35164 Référence CVE CVE-2020-35166 https://www.cve.org/CVERecord?id=CVE-2020-35166 Référence CVE CVE-2020-35167 https://www.cve.org/CVERecord?id=CVE-2020-35167 Référence CVE CVE-2020-35168 https://www.cve.org/CVERecord?id=CVE-2020-35168 Référence CVE CVE-2021-36373 https://www.cve.org/CVERecord?id=CVE-2021-36373 Référence CVE CVE-2021-36374 https://www.cve.org/CVERecord?id=CVE-2021-36374 Référence CVE CVE-2021-37533 https://www.cve.org/CVERecord?id=CVE-2021-37533 Référence CVE CVE-2022-24839 https://www.cve.org/CVERecord?id=CVE-2022-24839 Référence CVE CVE-2022-34381 https://www.cve.org/CVERecord?id=CVE-2022-34381 Référence CVE CVE-2022-36033 https://www.cve.org/CVERecord?id=CVE-2022-36033 Référence CVE CVE-2022-41704 https://www.cve.org/CVERecord?id=CVE-2022-41704 Référence CVE CVE-2022-42003 https://www.cve.org/CVERecord?id=CVE-2022-42003 Référence CVE CVE-2022-42004 https://www.cve.org/CVERecord?id=CVE-2022-42004 Référence CVE CVE-2022-42890 https://www.cve.org/CVERecord?id=CVE-2022-42890 Référence CVE CVE-2022-42920 https://www.cve.org/CVERecord?id=CVE-2022-42920 Référence CVE CVE-2022-45688 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0228Multiples vulnérabilités dans IBM

urité IBM 7138527 du 12 mars 2024 https://www.ibm.com/support/pages/node/7138527 Bulletin de sécurité IBM 7140420 du 13 mars 2024 https://www.ibm.com/support/pages/node/7140420 Bulletin de sécurité IBM 7142006 du 14 mars 2024 https://www.ibm.com/support/pages/node/7142006 Bulletin de sécurité IBM 7142007 du 14 mars 2024 https://www.ibm.com/support/pages/node/7142007 Bulletin de sécurité IBM 7142032 du 14 mars 2024 https://www.ibm.com/support/pages/node/7142032 Bulletin de sécurité IBM 7142038 du 14 mars 2024 https://www.ibm.com/support/pages/node/7142038 Référence CVE CVE-2018-8088 https://www.cve.org/CVERecord?id=CVE-2018-8088 Référence CVE CVE-2022-24839 https://www.cve.org/CVERecord?id=CVE-2022-24839 Référence CVE CVE-2022-34169 https://www.cve.org/CVERecord?id=CVE-2022-34169 Référence CVE CVE-2022-40609 https://www.cve.org/CVERecord?id=CVE-2022-40609 Référence CVE CVE-2022-41678 https://www.cve.org/CVERecord?id=CVE-2022-41678 Référence CVE CVE-2022-45688 https://www.cve.org/CVERecord?id=CVE-2022-45688 Référence CVE CVE-2022-46337 https://www.cve.org/CVERecord?id=CVE-2022-46337 Référence CVE CVE-2023-21930 https://www.cve.org/CVERecord?id=CVE-2023-21930 Référence CVE CVE-2023-21937 https://www.cve.org/CVERecord?id=CVE-2023-21937 Référence CVE CVE-2023-21938 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0276Multiples vulnérabilités dans les produits IBM

d?id=CVE-2022-21628 Référence CVE CVE-2022-21724 https://www.cve.org/CVERecord?id=CVE-2022-21724 Référence CVE CVE-2022-22970 https://www.cve.org/CVERecord?id=CVE-2022-22970 Référence CVE CVE-2022-22971 https://www.cve.org/CVERecord?id=CVE-2022-22971 Référence CVE CVE-2022-23437 https://www.cve.org/CVERecord?id=CVE-2022-23437 Référence CVE CVE-2022-23816 https://www.cve.org/CVERecord?id=CVE-2022-23816 Référence CVE CVE-2022-23825 https://www.cve.org/CVERecord?id=CVE-2022-23825 Référence CVE CVE-2022-24785 https://www.cve.org/CVERecord?id=CVE-2022-24785 Référence CVE CVE-2022-24823 https://www.cve.org/CVERecord?id=CVE-2022-24823 Référence CVE CVE-2022-24839 https://www.cve.org/CVERecord?id=CVE-2022-24839 Référence CVE CVE-2022-24999 https://www.cve.org/CVERecord?id=CVE-2022-24999 Référence CVE CVE-2022-25647 https://www.cve.org/CVERecord?id=CVE-2022-25647 Référence CVE CVE-2022-25758 https://www.cve.org/CVERecord?id=CVE-2022-25758 Référence CVE CVE-2022-2588 https://www.cve.org/CVERecord?id=CVE-2022-2588 Référence CVE CVE-2022-25901 https://www.cve.org/CVERecord?id=CVE-2022-25901 Référence CVE CVE-2022-25927 https://www.cve.org/CVERecord?id=CVE-2022-25927 Référence CVE CVE-2022-2625 https://www.cve.org/CVERecord?id=CVE-2022-2625 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-

Official advisory
CERT-FR · French · CERTFR-2022-AVI-659Multiples vulnérabilités dans Oracle WebLogic

De multiples vulnérabilités ont été découvertes dans Oracle WebLogic. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service à distance et une atteinte à l'intégrité des données.

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
nekohtml: < 1.9.22.noko2
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 11 Apr 2022 · Last source change 23 Apr 2025, 18:40 UTC · CWE-400 · Uncontrolled Resource Consumption

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-1761
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-24839 · cve.blacktree.nl