CVE-2026-19121: Multiple Vulnerabilities in IBM API Connect
Published Nov 5, 2026
·Updated
IBM API Connect 12.1.0.0 through 12.1.1.2 could allow an authenticated attacker to gain unauthorized access due to improper authorization. Tenant context is not sufficiently verified against the authenticated user, which could allow access to another tenant's resources.
Other sources
IBM API Connect could allow an authenticated attacker to gain unauthorized access due to improper authorization. Tenant context is not sufficiently verified against the authenticated user, which could allow access to another tenant's resources.
— IBM
Affected Software
1 affected component
IBM API Connect V12 OnPrem<=v12.1.0.0 - v12.1.1.2
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM API Connectto a version that resolves this vulnerability.Fixed in 12.1.1.3
Event History
Nov 5, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Nov 7, 2026
CVE Published
via MITRE·04:34 AM
Data Sourced
via MITRE·04:34 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·05:18 AM
DescriptionSeverityWeakness