---
title: "CVE-2026-91864: Neethi - Denial of Service"
description: "Neethi contains a denial of service caused by unbounded content in WS-Policy assertions leading to heap exhaustion, letting attackers cause service disruption, exploit requires crafted WS-Policy document."
url: https://panop.io/threat-heartbeat/CVE-2026-91864/
---

# CVE-2026-91864 Neethi - Denial of Service

Neethi contains a denial of service caused by unbounded content in WS-Policy assertions leading to heap exhaustion, letting attackers cause service disruption, exploit requires crafted WS-Policy document.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.74% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-91864)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

21 September 2026

Updated

15 October 2026

Weakness

[CWE-770](https://cwe.mitre.org/data/definitions/770.html)

## Vendor fix

Upgrade to version 3.2.4.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-91864](https://nvd.nist.gov/vuln/detail/CVE-2026-91864)
- [https://lists.apache.org/thread/400kbynbyhqhsjkv1yz251jm9wdz8z69](https://lists.apache.org/thread/400kbynbyhqhsjkv1yz251jm9wdz8z69)
- [http://www.openwall.com/lists/oss-security/2026/09/18/11](http://www.openwall.com/lists/oss-security/2026/09/18/11)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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