Improper Neutralization of Special Elements in Output Used by a Downstream Component in Argo Workflows - #VU126902
Published: August 4, 2021 / Updated: April 23, 2026
Vulnerability identifier: #VU126902
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to modify workflows.
The vulnerability exists due to improper neutralization of special elements in expression templates in workflow input parameter handling when processing user-supplied input parameters. A remote user can supply a crafted input parameter to modify workflows.
Only deployments that allow end-users to set input parameters are affected.
Affected software
Argo Workflows
Remediation
Install security update from vendor's website.
Argo Workflows - update to 3.1.6