Path Traversal in IBM API Connect

CVE-2026-17380

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to access sensitive information belonging to other tenants due to improper validation of a path parameter. A path value in a request is not sufficiently validated, which could allow a user to reach data outside their own tenant.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

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: 0.005 (42.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.1% 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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17380?
CVE-2026-17380 is a high-severity vulnerability in IBM API Connect, classified under Path Traversal. CVSS score: 8.5/10. Published 2026-11-07.
How severe is CVE-2026-17380?
High severity. CVSS v3 base score is 8.5 out of 10.