Bug 2431881 (CVE-2026-23960)

Summary: CVE-2026-23960 argo-workflows: Argo Workflows: Privilege escalation and information disclosure via stored Cross-Site Scripting (XSS)
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jkoehler, lphiri
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Argo Workflows, an open-source container-native workflow engine for orchestrating parallel jobs on Kubernetes. This stored Cross-Site Scripting (XSS) vulnerability in the artifact directory listing allows any workflow author to execute unauthorized JavaScript code in another user's web browser. This can lead to the compromise of the victim's session and enable an attacker to perform actions with the victim's privileges, potentially resulting in information disclosure or privilege escalation within the Argo Server environment.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-01-21 23:01:41 UTC
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.6.17 and 3.7.8, stored XSS in the artifact directory listing allows any workflow author to execute arbitrary JavaScript in another user’s browser under the Argo Server origin, enabling API actions with the victim’s privileges. Versions 3.6.17 and 3.7.8 fix the issue.