CVE-2026-117545 PUBLISHED

IBM webMethods Integration Server is vulnerable of bypassing the two-factor authentication mechanism.

Assigner: ibm
Reserved: 27.10.2026 Published: 08.11.2026 Updated: 08.11.2026

IBM webMethods Integration Server 12.1 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	webMethods Integration Server
Versions	Version 12.1 is affected

Solutions

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 fix readme document.

IS_12.1_Core_Fix1 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

References

https://www.ibm.com/support/pages/node/7295298

Problem Types

CWE-287 Improper Authentication CWE