CVE-2026-81207Network attack vector

Cross-tenant data disclosure via arbitrary WSDL fetch

Published Sep 10, 2026 · Updated Sep 10, 2026

Server-side request forgery in ds-canvas in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows remote authenticated users to read fetched data. The WSDL fetch accepts a caller-controlled scheme, host, port, and path, issues a GET from the shared-infrastructure pod, and returns the response body verbatim. Any authenticated tenant can reach co-tenant services, in-cluster APIs, and link-local addresses without project membership or an assigned role.

CVSS severity8.5
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in ds-canvas in IBM DataStage on Cloud Pak for Data 5.4.0.0 allows remote authenticated users to read fetched data. The WSDL fetch accepts a caller-controlled scheme, host, port, and path, issues a GET from the shared-infrastructure pod, and returns the response body verbatim. Any authenticated tenant can reach co-tenant services, in-cluster APIs, and link-local addresses without project membership or an assigned role.

The record

CVE
CVE-2026-81207
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
IBM
Product
IBM DataStage on Cloud Pak for Data
Classifications
CWE-22, CWE-73, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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

8.5IBM PSIRTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
CWE-73External Control of File Name or Path
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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