What is CVE-2026-15280?

CVE-2026-15280 is a high-severity vulnerability in IBM Websphere Application Server, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-28.

How severe is CVE-2026-15280?

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

Path Traversal in IBM Websphere Application Server

CVE-2026-15280

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 ND Collective Controller is affected by a path-segment injection vulnerability in the collective routing mechanism.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.003 (26.6th percentile) — read the EPSS interpretation.

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.

Affected products

Ibm Websphere_application_server
Ibm Websphere Application Server - Liberty — versions 17.0.0.3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

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

Frequently asked questions

What is CVE-2026-15280?: CVE-2026-15280 is a high-severity vulnerability in IBM Websphere Application Server, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-28.
How severe is CVE-2026-15280?: High severity. CVSS v3 base score is 7.5 out of 10.