Vulnerability in IBM API Connect

CVE-2026-17150

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 execute arbitrary code and access sensitive information from other tenants due to insufficient input validation. Uploaded custom module content is not sufficiently validated before it is processed, which could allow code to run with access beyond the user's own tenant.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

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-2026-17150?
CVE-2026-17150 is a critical-severity vulnerability in IBM API Connect, classified under Incomplete List of Disallowed Inputs. CVSS score: 9.9/10. Published 2026-11-07.
How severe is CVE-2026-17150?
Critical severity. CVSS v3 base score is 9.9 out of 10.