Authentication Bypass in IBM API Connect Products
CVE-2026-17383

7.7HIGH

Key Information:

Vendor

IBM
Status
Api Connect
Vendor
CVE Published:
7 November 2026

What is CVE-2026-17383?

A vulnerability in IBM API Connect allows remote authenticated attackers to access sensitive information belonging to other tenants. This occurs due to inadequate enforcement of object-level authorization, potentially exposing critical data across different user environments. Users are urged to review security advisories and apply necessary patches to mitigate this risk.

Affected Version(s)

API Connect 12.1.0.0 <= 12.1.1.2

API Connect 10.0.8.0 <= 10.0.8.12

References

https://www.ibm.com/support/pages/node/7295635
vendor-advisorypatch
https://www.ibm.com/support/pages/node/7295637
vendor-advisorypatch

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.