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Fencer Intel
high 7.5

CVE-2026-42402 json

Apache Neethi: Policy Normalization Unbounded Resource Allocation DoS

published 6mo ago modified 14d ago also GHSA-g36m-9g3m-2vmp , EUVD-2026-26485

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.apache.neethi:neethi 3.2.2
  • Apache Software Foundation Apache Neethi 3.2.2

Is CVE-2026-42402 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2026-42402 updated cvss 6.5

org.apache.neethi: Apache Neethi: Denial of Service via algorithmic complexity in policy normalization

  • Red Hat build of Apache Camel 4 for Quarkus 3 neethi
    affected: workaround, no fix available
  • Red Hat build of Apache Camel for Spring Boot 4 neethi Red Hat Fuse 7 neethi Red Hat JBoss Enterprise Application Platform 7 neethi Red Hat JBoss Enterprise Application Platform 8 neethi Red Hat JBoss Enterprise Application Platform Expansion Pack neethi Red Hat Process Automation 7 neethi
    +1 more products
    Red Hat Single Sign-On 7 neethi
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Build of Apache Camel 4.14 for Quarkus 3.27
    fixed: vendor fix RHSA-2026:19835

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
6mo ago

Exploit prediction

0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).

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
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.apache.neethi:neethi
<3.2.2
3.2.2

Affected products

  • Apache Software Foundation Apache Neethi

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

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