What is CVE-2026-17331?

CVE-2026-17331 is a high-severity vulnerability in IBM API Connect, classified under External Control of File Name or Path. CVSS score: 7.5/10. Published 2026-11-07.

How severe is CVE-2026-17331?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in IBM API Connect

CVE-2026-17331

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to read arbitrary files on the server due to external control of a file name or path.

Published 2026-11-07 · last modified 2026-11-08.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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

IBM API Connect

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

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

Frequently asked questions

What is CVE-2026-17331?: CVE-2026-17331 is a high-severity vulnerability in IBM API Connect, classified under External Control of File Name or Path. CVSS score: 7.5/10. Published 2026-11-07.
How severe is CVE-2026-17331?: High severity. CVSS v3 base score is 7.5 out of 10.