What is CVE-2026-17187?

CVE-2026-17187 is a high-severity vulnerability in IBM API Connect, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-11-07.

How severe is CVE-2026-17187?

High severity. CVSS v3 base score is 8.5 out of 10.

SSRF in IBM API Connect

CVE-2026-17187

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of user-supplied URLs.

Vulnerability class: SSRF (Server-Side Request Forgery)

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

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.9th percentile), scored 2026-11-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

IBM API Connect

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

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

Frequently asked questions

What is CVE-2026-17187?: CVE-2026-17187 is a high-severity vulnerability in IBM API Connect, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-11-07.
How severe is CVE-2026-17187?: High severity. CVSS v3 base score is 8.5 out of 10.