What is CVE-2026-3144?

CVE-2026-3144 is a high-severity vulnerability in IBM API Connect, classified under CWE-1392. CVSS score: 8.1/10. Published 2026-07-08.

How severe is CVE-2026-3144?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in IBM API Connect

CVE-2026-3144

IBM API Connect 12.1.0.0 through 12.1.0.3 uses default credentials which could allow an attacker to gain unauthorized access to the application before the system enforces a credential update.

Published 2026-07-08 · last modified 2026-07-10.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (33.4th percentile), scored 2026-10-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM API Connect — versions 12.1.0.0
IBM API Connect

Weakness classification (CWE)

CWE-1392

References

www.ibm.com/support/pages/node/7278909 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-3144?: CVE-2026-3144 is a high-severity vulnerability in IBM API Connect, classified under CWE-1392. CVSS score: 8.1/10. Published 2026-07-08.
How severe is CVE-2026-3144?: High severity. CVSS v3 base score is 8.1 out of 10.