CVE-2026-2310

IBM webMethods Integration Server is vulnerable to an XML external entity injection (XXE) attack when processing XML data

Published Sep 10, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

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 )

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title IBM webMethods Integration Server is vulnerable to an XML external entity injection (XXE) attack when processing XML data
First Time appeared Ibm
Ibm webmethods Integration Server
Weaknesses CWE-91
CPEs cpe:2.3:a:ibm:webmethods_integration_server:11.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:webmethods_integration_server:11.1:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm webmethods Integration Server
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Sep 11, 2026, 8:31 PM
Reserved
Feb 10, 2026, 9:27 PM
Status
Awaiting Analysis
Published
Sep 10, 2026, 10:16 PM
Modified
Sep 11, 2026, 9:17 PM