CVE-2026-23960

Summary

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.

Affected Software

Weaknesses

• CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

argo-workflows: Argo Workflows: Privilege escalation and information disclosure via stored Cross-Site Scripting (XSS)

Additional References

• https://access.redhat.com/security/cve/CVE-2026-23960
• https://bugzilla.redhat.com/show_bug.cgi?id=2431881
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23960.json

References

• https://github.com/argoproj/argo-workflows/security/advisories/GHSA-cv78-6m8q-ph82
• https://github.com/argoproj/argo-workflows/commit/159a5c56285ecd4d3bb0a67aeef4507779a44e17
• https://github.com/argoproj/argo-workflows/blob/9872c296d29dcc5e9c78493054961ede9fc30797/server/artifacts/artifact_server.go#L194-L244
• https://github.com/argoproj/argo-workflows/releases/tag/v3.6.17
• https://github.com/argoproj/argo-workflows/releases/tag/v3.7.8

• ←Previous
• Next→