Path Traversal in IBM Websphere Application Server - Liberty

CVE-2026-79715

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 could allow a local attacker to traverse directories on the system. An attacker could use a specially crafted application archive to write files outside the intended directory.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-79715?
CVE-2026-79715 is a medium-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-10-13.
How severe is CVE-2026-79715?
Medium severity. CVSS v3 base score is 5.5 out of 10.