IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to enumerate usernames due to observable differences in response behavior.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
IBM API Connect affected
Version Status Constraints
12.1.0.0 affected ≤ 12.1.1.2

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Ibm Subscribe
Api Connect Subscribe
Advisories

No advisories yet.

Fixes

Solution

IBM strongly recommends addressing the vulnerability now by upgrading to v12.1.1.3 Fix Central Link: https://www.ibm.com/support/pages/node/7290205

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.ibm.com/support/pages/node/7295635 cve-icon
History

Sat, 07 Nov 2026 04:45:00 +0000

Type Values Removed Values Added
Description IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to enumerate usernames due to observable differences in response behavior.
Title Multiple Vulnerabilities in IBM API Connect
First Time appeared Ibm
Ibm api Connect
Weaknesses CWE-204
CPEs cpe:2.3:a:ibm:api_connect:12.1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:api_connect:12.1.1.2:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm api Connect
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-11-07T04:32:12.158Z

Reserved: 2026-07-24T19:18:49.892Z

Link: CVE-2026-17202

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses