REDHAT-BUG-2468448: High severity Argo Argo Workflows vulnerability

Published May 9, 2026
·
Updated

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, the Sync Service's ConfigMap-backed provider (server/sync/synccm.go) performs zero authorization checks on all CRUD operations (create, read, update, delete). Any authenticated user — including those using fake Bearer tokens — can create, read, update, and delete Kubernetes ConfigMaps containing synchronization limits. This issue has been patched in version 4.0.5.

Affected Software

1 affected component
Argo Argo Workflows>=4.0.0<4.0.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Argo Workflows (Sync Service) to a version that resolves this vulnerability.

    Fixed in 4.0.5

Event History

May 9, 2026
Data Sourced
via Red Hat·05:01 AM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2468448?

The severity of REDHAT-BUG-2468448 is classified as high with a score of 7.

2

How do I fix REDHAT-BUG-2468448?

To fix REDHAT-BUG-2468448, upgrade Argo Workflows to version 4.0.5 or later.

3

What type of vulnerability is REDHAT-BUG-2468448?

REDHAT-BUG-2468448 is a security vulnerability related to improper authorization checks in the Sync Service of Argo Workflows.

4

Which versions of Argo Workflows are affected by REDHAT-BUG-2468448?

Versions 4.0.0 to just before 4.0.5 of Argo Workflows are vulnerable as per REDHAT-BUG-2468448.

5

What impact does REDHAT-BUG-2468448 have on Argo Workflows?

REDHAT-BUG-2468448 allows unauthorized users to perform CRUD operations against the Sync Service, potentially leading to data manipulation.

Contact

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