---
id: CVE-2026-2310
title: >-
  IBM webMethods Integration Server is vulnerable to an XML external entity
  injection (XXE) attack when processing XML data
summary: >-
  IBM webMethods Integration Server 11.1 IBM webMethods Integration is
  vulnerable to an XML external entity injection (XXE) attack when processing
  XML data. A remote attacker could exploit this vulnerability to expose
  sensitive information…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-91
vendor: IBM
product: webMethods Integration Server
affected:
  - webmethods_integration_server 11.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-11T18:46:26.061541Z'
published: '2026-09-10'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T20:31:09.333Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-2310'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286620'
tags:
  - cve.org
epss: 0.00265
epssPercentile: 0.18662
ingestedAt: '2026-09-14T11:11:19.881Z'
---

## Overview

IBM webMethods Integration Server 11.1 IBM webMethods Integration is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.

## Affected

- `webmethods_integration_server 11.1`

## Remediation

IBM strongly recommends addressing the vulnerability now by applying the mentioned core fixes or later core fixes for the affected versions and following the respective readme document.



IS_11.1_Core_Fix14 or later



Fixes can be downloaded and installed via IBM webMethods Update Manager. Refer to How to Download webMethods Software ( https://www.ibm.com/support/pages/node/7232491 )