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8.3 High

CVE-2026-19121 Multiple Vulnerabilities in IBM API Connect

Description

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.

CVSS 3.1 detail

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

Exploitable remotely over the network, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
Low
Privileges required
Low
Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

Affected products and versions

Product Affected versions Fixed in
API Connect 12.1 12.1.0.0 → 12.1.1.2 No fix stated

Other CVEs of API Connect

The 286 CVEs of API Connect →
CVE-2026-18535 IBM API Connect Denial of Service 9.6 Critical CVE-2026-19124 Multiple Vulnerabilities in IBM API Connect 6.8 Medium CVE-2026-17393 Multiple Vulnerabilities in IBM API Connect 5.1 Medium CVE-2026-17386 Multiple Vulnerabilities in IBM API Connect 8.1 High
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