Vulnerability record/PUBLISHED/Published Nov 7, 2026 04:33:45 UTC
CVE-2026-17358
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.
Base score8.2/ 10
SeverityHighCVSS 3.1
Exploitability / impact
CVSS metric breakdown
Base severityHigh
Attack vectorNetworkAV
Attack complexityHighAC
Privileges requiredLowPR
User interactionNoneUI
ScopeChangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactNoneA
CVSS vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:NCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering Authorityibm
Last updatedNov 11, 2026 03:51:54 UTC
PublishedNov 7, 2026 04:33:45 UTC
ReservedJul 25, 2026 03:10:20 UTC