Vulnerability in IBM API Connect

CVE-2026-17394

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 improperly controlled modification of object attributes. A user-supplied value could change an access-related setting that should be controlled by the system, which could expose sensitive information.

Vulnerability class: Mass Assignment

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/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

Frequently asked questions

What is CVE-2026-17394?
CVE-2026-17394 is a critical-severity vulnerability in IBM API Connect, classified under Improperly Controlled Modification of Dynamically-Determined Object Attributes. CVSS score: 9.6/10. Published 2026-11-07.
How severe is CVE-2026-17394?
Critical severity. CVSS v3 base score is 9.6 out of 10.