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high advisory

IBM API Connect: Cross-tenant unauthorized operations (CVE-2026-17284)

IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 allow a remote authenticated attacker to perform unauthorized operations in other tenants' environments due to improper validation of client-supplied information and insufficient verification of tenant context.

CVE search metadata

CVE search record: CVE-2026-17284. Severity: high. CVSS: 7.1. KEV: no. Product: API Connect (10.0.8.0-10.0.8.12, 12.1.0.0-12.1.1.2). Brief: IBM API Connect: Cross-tenant unauthorized operations (CVE-2026-17284). Brief link: https://feed.craftedsignal.io/briefs/2026-11-ibm-api-connect-vulnerability/

Triage facts

Revision 1
Applicability
API Connect (10.0.8.0-10.0.8.12, 12.1.0.0-12.1.1.2)
Evidence
Unknown
Severity
High
Sources
1 public source
Freshness
Revision 1Nov 7, 06:05 UTC
Vulnerabilities
1 CVE
Source quality
A2Roughly even chance

IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 contain a vulnerability where improper validation of client-supplied information and insufficient verification of tenant context could allow a remote authenticated attacker to perform unauthorized operations on resources belonging to other tenants.