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Fencer Vulns
high 7.5

CVE-2026-91863 json

Apache Neethi: Uncontrolled recursion while parsing crafted WS-Policy documents allows denial of service

published 2026-09-21 49 d ago modified 2026-09-24 45 d ago also EUVD-2026-83885

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

A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.

Patch / fix

  • Apache Software Foundation Apache Neethi 3.2.4

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-2026-91863 updated cvss 7.5

org.apache.neethi/neethi: Apache Neethi: Denial of Service via uncontrolled recursion in WS-Policy document parsing

  • Red Hat build of Apache Camel 4 for Quarkus 3 neethi 3.2.2.redhat-00001 Red Hat build of Apache Camel for Spring Boot 4 neethi 3.2.2.redhat-00001
    affected: workaround, no fix available
  • Red Hat JBoss Enterprise Application Platform 7 neethi 3.2.2.redhat-00001, jboss-eap-7/eap74-els-openjdk8-openshift-rhel8, jboss-eap-7/eap74-els-openjdk11-openshift-rhel8, jboss-eap-7/eap74-els-openjdk17-openshift-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform 8 neethi 3.2.2.redhat-00001
    affected: workaround, no fix available
  • Red Hat Single Sign-On 7 neethi 3.2.2.redhat-00001
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Build of Apache Camel 3.33.4.redhat neethi 3.2.4.redhat-00001
    fixed: vendor fix RHSA-2026:83670
  • Red Hat Build of Apache Camel 3.33.4.redhat jimfs 1.1, jna 5.8.0, bcel 6.7.0, gax 2.74.1, icu4j 78.2, joni 2.2.6, +1616 more
    not affected: vulnerable code not present
  • Red Hat Fuse 7 neethi 3.2.2.redhat-00001
    not affected: vulnerable code not in execute path
  • Red Hat JBoss Enterprise Application Platform Expansion Pack neethi 3.2.2.redhat-00001
    not affected: component not present

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
49 d 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
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Apache Software Foundation Apache Neethi

Classification

Weakness

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.