CVE-2026-42297
Published:May 09, 2026
Updated:May 16, 2026
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/sync_cm.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 Packages
https://github.com/argoproj/argo-workflows.git (GITHUB):
Affected version(s) >=v4.0.0 <v4.0.5Fix Suggestion:
Update to version v4.0.5github.com/argoproj/argo-workflows/v4 (GO):
Affected version(s) >=v4.0.0-20260501053831-80dc102f42b0 <v4.0.5Fix Suggestion:
Update to version v4.0.5Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Missing Authorization
EPSS
Base Score:
0.04