CVE-2026-84421Network attack vector

Authenticated code execution via archive path traversal

Published Sep 29, 2026 · Updated Sep 29, 2026

Path traversal in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows remote authenticated users to execute code through archive extraction. The archive-extraction process does not properly validate paths in archive content, allowing extraction outside the intended location. Exploitation requires access to the affected DataStage service; IBM has not published the specific extraction entry point or the code-execution path.

CVSS severity8.8
High
EPSS probability0.57%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows remote authenticated users to execute code through archive extraction. The archive-extraction process does not properly validate paths in archive content, allowing extraction outside the intended location. Exploitation requires access to the affected DataStage service; IBM has not published the specific extraction entry point or the code-execution path.

The record

CVE
CVE-2026-84421
Published
Sep 29, 2026
Updated
Sep 29, 2026
Vendor
IBM
Product
IBM DataStage on Cloud Pak for Data
Classifications
CWE-22
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

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Your stack

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