CVE-2026-2255Network attack vector

Authenticated Hadoop credential disclosure via Cluster Test API

Published May 27, 2026 · Updated May 27, 2026

Pentaho Data Integration and Analytics before 10.2.0.6 and 11.0.0.0 exposes Hadoop credentials to remote authenticated users via the Cluster Test API. The endpoint returns the configured Hadoop cluster username and password as plain-text response fields instead of suppressing those secrets. A valid low-privilege Pentaho account and a configured Hadoop cluster are required; disclosure is limited to credentials already usable by that account to submit backend jobs.

CVSS severity4.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Pentaho Data Integration and Analytics before 10.2.0.6 and 11.0.0.0 exposes Hadoop credentials to remote authenticated users via the Cluster Test API. The endpoint returns the configured Hadoop cluster username and password as plain-text response fields instead of suppressing those secrets. A valid low-privilege Pentaho account and a configured Hadoop cluster are required; disclosure is limited to credentials already usable by that account to submit backend jobs.

The record

CVE
CVE-2026-2255
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Hitachi Vantara
Product
Pentaho Data Integration and Analytics
Classifications
CWE-522, T1212
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=10.0 <11.0.0
  2. Affected versionversion=1.0 <10.2.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hitachi Vantara · Pentaho Data Integration and Analyticsversion=10.0 <11.0.0; version=1.0 <10.2.0.6

Published CVSS scores

4.3Hitachi VantaraCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1212Exploitation for Credential Access

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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