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Vulnerability record · CVE-2026-23960 · published 21 January 2026

CVE-2026-23960: Argoproj argo workflows cross-site scripting vulnerability

Argoproj · Argo Workflows

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.

7.3 CVSS 4.0 High EPSS 0.40% · top 67.9% CWE-79 · Cross-site scripting
7.3CVSS 4.0 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 1 tagged exploit
15 Jul 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/argoproj/argo-workflows/blob/9872c296d29dcc5e9c78493054961ede9fc30797/server/artifacts/artifact_serve Product
https://github.com/argoproj/argo-workflows/commit/159a5c56285ecd4d3bb0a67aeef4507779a44e17 Patch
https://github.com/argoproj/argo-workflows/releases/tag/v3.6.17 ProductRelease Notes
https://github.com/argoproj/argo-workflows/releases/tag/v3.7.8 ProductRelease Notes
https://github.com/argoproj/argo-workflows/security/advisories/GHSA-cv78-6m8q-ph82 ExploitVendor Advisory
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-23960), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.