CVE-2026-91863

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

Published Sep 21, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:apache:neethi:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Weaknesses CWE-400
CWE-973
Type Values Removed Values Added
Weaknesses CWE-674
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache neethi
Vendors & Products Apache
Apache neethi
Type Values Removed Values Added
Weaknesses CWE-400
CWE-973
Type Values Removed Values Added
Description 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.
Title Apache Neethi: Uncontrolled recursion while parsing crafted WS-Policy documents allows denial of service
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Sep 21, 2026, 1:36 PM
Reserved
Sep 15, 2026, 9:50 AM
Status
Analyzed
Published
Sep 21, 2026, 12:17 PM
Modified
Sep 24, 2026, 8:34 PM
Severity
Important
Public date
Sep 21, 2026, 11:25 AM