What is CVE-2026-17356?

CVE-2026-17356 is a high-severity vulnerability in IBM API Connect, classified under Use of Hard-coded Cryptographic Key. CVSS score: 8.7/10. Published 2026-11-07.

How severe is CVE-2026-17356?

High severity. CVSS v3 base score is 8.7 out of 10.

Vulnerability in IBM API Connect

CVE-2026-17356

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a local attacker to obtain sensitive information due to the use of a hard-coded cryptographic key.

Published 2026-11-07 · last modified 2026-11-07.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/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

IBM API Connect

Weakness classification (CWE)

CWE-321 — Use of Hard-coded Cryptographic Key

References

www.ibm.com/support/pages/node/7295635 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-17356?: CVE-2026-17356 is a high-severity vulnerability in IBM API Connect, classified under Use of Hard-coded Cryptographic Key. CVSS score: 8.7/10. Published 2026-11-07.
How severe is CVE-2026-17356?: High severity. CVSS v3 base score is 8.7 out of 10.