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CVE-2022-29546 HtmlUnit

Affected softwareHtmlUnit
Severity7.5 High CVSS 3.1 2 scores
Fixed in2.61.0
WeaknessUncontrolled resource consumption (CWE-400)
Published25 Apr 2022
Updated2 Nov 2026

Description

HtmlUnit NekoHtml Parser before 2.61.0 suffers from a denial of service vulnerability. Crafted input associated with the parsing of Processing Instruction (PI) data leads to heap memory consumption. This is similar to CVE-2022-28366 but affects a much later version of the product.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 4 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 1.2% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: HtmlUnit/htmlunit-neko 9d2aecd.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://github.com/HtmlUnit/htmlunit-neko/security/advisories/GHSA-6jmm-mp6w-4rrg : the maintainers' own security advisory: names the version that fixes it, so the fix is the difference between two releases

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD Primary published
CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:N/I:N/A:P NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update October 2023 ↗ CPU 2023-Q4 Oracle Fusion Middleware / Centralized Thirdparty Jars (NekoHTML) (14.1.1.0.0)
Oracle Critical Patch Update July 2023 ↗ CPU 2023-Q3 Oracle Fusion Middleware / Third Party (NekoHTML) (12.2.1.4.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Fusion Middleware Centralized Thirdparty Jars (NekoHTML) 14.1.1.0.0 14.1.1.0.0
Oracle Fusion Middleware Third Party (NekoHTML) 12.2.1.4.0 12.2.1.4.0

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
net.sourceforge.htmlunit:neko-htmlunit 0 2.61.0 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
nvd htmlunit htmlunit generic < 2.61.0
osv net.sourceforge.htmlunit neko-htmlunit generic < 2.61.0

References

URLTags
https://github.com/HtmlUnit/htmlunit-neko/security/advisories/GHSA-6jmm-mp6w-4rrg advisory
https://github.com/HtmlUnit/htmlunit-neko/commit/9d2aecd69223469e40c12ca3edddda09009110cc WEB
https://github.com/HtmlUnit/htmlunit-neko PACKAGE

Timeline

Published2022-04-25By the CVE Program.
NVD record modified2026-11-02NVD's own last-modified date for this record.