SB20210722101 - Improper access control in Argo Workflows
Published: July 22, 2021 Updated: April 23, 2026
Security Bulletin ID
SB20210722101
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: N/A)
The vulnerability allows a remote user to execute arbitrary code on the Kubernetes cluster.
The vulnerability exists due to improper access control in Argo Server when the user interface is exposed to the internet while using --auth-mode=server. A remote user can access the exposed interface to execute arbitrary code on the Kubernetes cluster.
Only deployments using Argo Server with --auth-mode=server and an internet-exposed UI are vulnerable.
Remediation
Install update from vendor's website.