CVE-2026-18620

Data-sciences-pipeline: user-controlled serviceaccount for workflow pods without authorization check — confused deputy

Published Aug 10, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
A flaw was found in Data Science Pipelines. A restricted user, or tenant, can exploit an improper authorization vulnerability in the setDefaultServiceAccount function. By specifying a more privileged ServiceAccount (SA) during a CreateRun request, an attacker can bypass authorization checks. This allows the tenant to run their containers with elevated privileges, potentially leading to the disclosure of sensitive information (secrets) and the ability to execute commands within other users' pods.

Remediation

Vendor Workaround

To mitigate this issue, operators of Red Hat OpenShift AI should configure an allow-list for ServiceAccounts that tenants can specify in their workflow run requests. Restricting the available ServiceAccounts to a predefined, least-privileged set, such as the default `pipeline-runner` only, will prevent unauthorized privilege escalation. This configuration change should be applied to the API server responsible for processing workflow run requests. New workflow runs will respect the updated configuration.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift_ai:3.5::el9
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift_ai:2.25::el9
cpe:/a:redhat:openshift_ai:3.4::el9
References
Type Values Removed Values Added
First Time appeared Redhat openshift Ai 3.3
Vendors & Products Redhat openshift Ai 3.3
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift_ai cpe:/a:redhat:openshift_ai:3.3::el9
References
Type Values Removed Values Added
Description A flaw was found in Data Science Pipelines. A restricted user, or tenant, can exploit an improper authorization vulnerability in the setDefaultServiceAccount function. By specifying a more privileged ServiceAccount (SA) during a CreateRun request, an attacker can bypass authorization checks. This allows the tenant to run their containers with elevated privileges, potentially leading to the disclosure of sensitive information (secrets) and the ability to execute commands within other users' pods.
Title Data-sciences-pipeline: user-controlled serviceaccount for workflow pods without authorization check — confused deputy
First Time appeared Redhat
Redhat openshift Ai
Weaknesses CWE-639
CPEs cpe:/a:redhat:openshift_ai
Vendors & Products Redhat
Redhat openshift Ai
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Sep 21, 2026, 11:27 AM
Reserved
Aug 3, 2026, 7:57 AM
Status
Awaiting Analysis
Published
Aug 10, 2026, 9:17 PM
Modified
Sep 21, 2026, 12:17 PM
Severity
Moderate
Public date
Aug 10, 2026, 6:50 PM