CVE-2026-23960
Stored XSS in Argo Workflows Artifact Directory Enables Privilege Escalation
Publication date: 2026-01-21
Last updated on: 2026-02-17
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| argoproj | argo_workflows | to 3.6.17 (exc) |
| argoproj | argo_workflows | From 3.7.0 (inc) to 3.7.8 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a stored Cross-Site Scripting (XSS) issue in Argo Workflows prior to versions 3.6.17 and 3.7.8. It occurs in the artifact directory listing, allowing any workflow author to inject and execute arbitrary JavaScript code in another user's browser under the Argo Server origin. This means that malicious scripts can run with the victim's privileges within the Argo Server environment.
How can this vulnerability impact me? :
The vulnerability can allow an attacker who is a workflow author to execute arbitrary JavaScript in the browsers of other users. This can lead to unauthorized API actions being performed with the victim's privileges, potentially compromising data integrity, confidentiality, and availability within the Argo Workflows environment.
What immediate steps should I take to mitigate this vulnerability?
Upgrade Argo Workflows to version 3.6.17 or 3.7.8 or later, as these versions contain fixes for the stored XSS vulnerability.