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CVE-2026-42402 Apache Neethi

Affected softwareApache Neethi
Severity7.5 High CVSS 3.1
Fixed in3.2.2
WeaknessUncontrolled resource consumption (CWE-400)
Published1 May 2026
Updated26 Oct 2026

Description

Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalization. Specially crafted WS-Policy documents can trigger an exponential Cartesian cross-product expansion during the normalization process, causing unbounded memory allocation that exhausts the JVM heap. This occurs when the normalization process generates an excessive number of policy alternatives without bounds, leading to runtime memory exhaustion. Users should upgrade to 3.2.2 which limits the maximum number of normalized policy alternatives.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.71% 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.

  • 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.

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update October 2026 ↗ CPU 2026-Q4 Oracle Fusion Middleware / Centralized Thirdparty Jars (Apache Neethi) (12.2.1.4.0)
Oracle Critical Patch Update July 2026 ↗ CPU 2026-Q3 Oracle Construction and Engineering / Platform (Apache Neethi) (21.12.0-21.12.17, 22.12.0-22.12.15, 23.12.0-23.12.16, 24.12.0-24.12.14, 25.12.0-25.12.6)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Construction and Engineering Platform (Apache Neethi) 21.12.0-21.12.17, 22.12.0-22.12.15, 23.12.0-23.12.16, 24.12.0-24.12.14, 25.12.0-25.12.6
Oracle Fusion Middleware Centralized Thirdparty Jars (Apache Neethi) 12.2.1.4.0 12.2.1.4.0

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.neethi:neethi 0 3.2.2 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
nvd apache neethi generic < 3.2.2
osv org.apache.neethi neethi generic < 3.2.2

References

URLTags
https://github.com/apache/ws-neethi PACKAGE
https://lists.apache.org/thread/p826j0phhmr9f83wzpmys1y0bdfrr2q4 WEB
http://www.openwall.com/lists/oss-security/2026/05/01/6 WEB

Timeline

Published2026-05-01By the CVE Program.
NVD record modified2026-10-26NVD's own last-modified date for this record.