CVE-2026-17358
Multiple Vulnerabilities in IBM API Connect
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to bypass authentication across tenants due to improper authentication. Authentication checks are not sufficiently isolated between tenants, which could allow a user from one tenant to be accepted by another.
| CWE | CWE-287 |
| Vendor | ibm |
| Product | api connect |
| Published | Nov 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
IBM / API Connect
12.1.0.0 ≤ 12.1.1.2 10.0.8.0 ≤ 10.0.8.12