Auth bypass in IBM API Connect
CVE-2026-17428
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 obtain sensitive information due to improper authorization. Values supplied in the request URL are used in authorization decisions without sufficient verification, which could allow access to information belonging to others.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/7295635 (vendor-advisory, patch)
- www.ibm.com/support/pages/node/7295637 (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-17428?
- CVE-2026-17428 is a medium-severity vulnerability in IBM API Connect, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.0/10. Published 2026-11-07.
- How severe is CVE-2026-17428?
- Medium severity. CVSS v3 base score is 5.0 out of 10.