Skip to content
Fencer Vulns
high 7.5

CVE-2026-42403 json

Apache Neethi: Circular Policy Reference Infinite Loop

published 2026-05-01 6 mo ago modified 2026-10-26 13 d ago also GHSA-2hfh-9h53-qc24 , EUVD-2026-26486

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Patch / fix

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

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-2026-42403 updated cvss 6.5

org.apache.neethi: Apache Neethi: Denial of Service via circular policy references

  • 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
6 mo ago

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% 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
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

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.