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CRITICAL severity

CVE-2026-81549 — Datastage On Cloud Pak For Data

CRITICAL

CVE-2026-81549 is a critical-severity (CVSS 9.6) Server-Side Request Forgery (SSRF) vulnerability in ibm datastage on cloud pak for data. No vendor fix is recorded yet; mitigation options are listed below.

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.

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-81549.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs17th percentile — riskier than 17% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-81549 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 383,485 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Description

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.

Affected Products

1 product · 1 configurations
Application
datastage on cloud pak for dataibm
1 version
5.4.0

Detection & mitigation playbook

Vendor / appliance

  1. Detect

    Inventory every ibm datastage on cloud pak for data deployment and check each version against the affected-products list above.

  2. Remediation status

    No patch has shipped for CVE-2026-81549 yet — track the ibm datastage on cloud pak for data advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

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.
O3 Security · Runtime Protection

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CVE-2026-81549: SSRF (Critical 9.6)