CVE-2026-81552Network attack vector

Authenticated command execution via unneutralized environment variables

Published Sep 24, 2026 · Updated Sep 24, 2026

OS command injection in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows remote authenticated users to execute arbitrary commands. The product fails to neutralize environment variables before using them in an undisclosed command-execution path; IBM has not identified the affected component or operation. Authenticated DataStage access is required, and successful exploitation runs attacker-chosen commands in the affected deployment.

CVSS severity8.8
High
EPSS probability0.77%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows remote authenticated users to execute arbitrary commands. The product fails to neutralize environment variables before using them in an undisclosed command-execution path; IBM has not identified the affected component or operation. Authenticated DataStage access is required, and successful exploitation runs attacker-chosen commands in the affected deployment.

The record

CVE
CVE-2026-81552
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
IBM
Product
IBM DataStage on Cloud Pak for Data
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM DataStage on Cloud Pak for Dataversion=5.4.0.0

Published CVSS scores

8.8IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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