Path traversal in Argo Workflows - #VU151674
Published: September 22, 2026
Vulnerability identifier: #VU151674
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper limitation of a pathname to a restricted directory in the directory artifact materialization functionality of the S3, GCS, Azure Blob, and OSS artifact drivers when downloading directory artifacts from cloud object storage. A remote user can provide a crafted cloud object key containing directory traversal sequences to execute arbitrary code.
Exploitation requires a workflow configured to use a directory input artifact.
Affected software
Argo Workflows
Remediation
Install security update from vendor's website.
Argo Workflows - addressed in versions 4.0.12, 4.1.4