CVE-2026-23960highCWE-79

CVE-2026-23960: high-severity vulnerability in argoproj argo-workflows

Argo Workflows affected by stored XSS in the artifact directory listing

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.3epss 0.4%
exploitation probability
0.4%top 67% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
argoproj · argo-workflows
Related CVEs — argoproj argo-workflows

In the same product, most dangerous first.

CVE-2022-29164HIGHPrivilege Escalation in argo-workflowsEPSS 0.9%CVE-2026-28229CRITICALArgo Workflows has unauthorized access to Argo Workflows TemplateEPSS 0.8%CVE-2026-42294HIGHArgo Workflows: Unauthenticated Memory Exhaustion (DoS) in Webhook InterceptorEPSS 0.7%CVE-2025-66626HIGHargoproj/argo-workflows is vulnerable to RCE via ZipSlip and symbolic linksEPSS 0.7%CVE-2024-53862MEDIUMArgo Workflows Allows Access to Archived Workflows with Fake Token in `client` modeEPSS 0.7%CVE-2026-31892HIGHWorkflowTemplate Security Bypass via podSpecPatch in Strict/Secure Reference ModeEPSS 0.7%
References
https://access.redhat.com/security/cve/CVE-2026-23960https://bugzilla.redhat.com/show_bug.cgi?id=2431881https://github.com/argoproj/argo-workflows/blob/9872c296d29dcc5e9c78493054961ede9fc30797/server/artifacts/artifact_server.go#L194-L244https://github.com/argoproj/argo-workflows/commit/159a5c56285ecd4d3bb0a67aeef4507779a44e17https://github.com/argoproj/argo-workflows/releases/tag/v3.6.17https://github.com/argoproj/argo-workflows/releases/tag/v3.7.8https://github.com/argoproj/argo-workflows/security/advisories/GHSA-cv78-6m8q-ph82https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23960.json