What is CVE-2026-81540?

CVE-2026-81540 is a high-severity vulnerability in IBM Datastage On Cloud Pak For Data, classified under Path Traversal. CVSS score: 8.5/10. Published 2026-09-10.

How severe is CVE-2026-81540?

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

Path Traversal in IBM Datastage On Cloud Pak For Data

CVE-2026-81540

IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to overwrite ruleset files belonging to other tenants due to a path traversal vulnerability.

Vulnerability class: Path Traversal (Directory Traversal)

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:N/I:H/A:L.

Affected products

Ibm Datastage On Cloud Pak For Data — versions 5.4.0.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

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

Frequently asked questions

What is CVE-2026-81540?: CVE-2026-81540 is a high-severity vulnerability in IBM Datastage On Cloud Pak For Data, classified under Path Traversal. CVSS score: 8.5/10. Published 2026-09-10.
How severe is CVE-2026-81540?: High severity. CVSS v3 base score is 8.5 out of 10.