What is CVE-2026-2606?

CVE-2026-2606 is a medium-severity vulnerability in IBM Webmethods API Gateway, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-03-03.

How severe is CVE-2026-2606?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Path Traversal in IBM Webmethods API Gateway

CVE-2026-2606

IBM webMethods API Gateway (on-prem) 10.11 through 10.11_Fix3210.15 to 10.15_Fix2711.1 to 11.1_Fix7 IBM webMethods API Management (on-prem) fails to properly validate user-supplied input passed to the url parameter on the /createapi endpoint. An attacker can modify this parameter to use a file:// URI schema instead of the expected https:// schema, enabling unauthorized arbitrary file read access on the underlying server file system.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.003 (22.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Ibm Webmethods_api_gateway — versions 10.11, 10.15, 11.1
Ibm Webmethods Api Gateway (On-prem) — versions 10.11, 10.15, 11.1

Weakness classification (CWE)

CWE-22 — Path Traversal

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-2606?: CVE-2026-2606 is a medium-severity vulnerability in IBM Webmethods API Gateway, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-03-03.
How severe is CVE-2026-2606?: Medium severity. CVSS v3 base score is 6.5 out of 10.