What is CVE-2026-81549?

CVE-2026-81549 is a critical-severity vulnerability in IBM Datastage On Cloud Pak For Data, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.6/10. Published 2026-09-24.

How severe is CVE-2026-81549?

Critical severity. CVSS v3 base score is 9.6 out of 10.

SSRF in IBM Datastage On Cloud Pak For Data

CVE-2026-81549

IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of the X-Forwarded-Proto header.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/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

IBM Datastage On Cloud Pak For Data — versions 5.4.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.ibm.com/support/pages/node/7288649 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-81549?: CVE-2026-81549 is a critical-severity vulnerability in IBM Datastage On Cloud Pak For Data, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.6/10. Published 2026-09-24.
How severe is CVE-2026-81549?: Critical severity. CVSS v3 base score is 9.6 out of 10.