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CVE-2026-23960

5.4 · MEDIUM

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes.

Published Jan 21, 2026CWE-79EPSS 0.41%

Overview

CVE-2026-23960 is a medium-severity vulnerability. It was published on January 21, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/argoproj/argo-workflows/blob/9872c296d29dcc5e9c78493054961ede9fc30797/server/artifacts/artifact_server.go#L194-L244GitHubgithub.com/argoproj/argo-workflows/commit/159a5c56285ecd4d3bb0a67aeef4507779a44e17GitHubgithub.com/argoproj/argo-workflows/releases/tag/v3.6.17GitHubgithub.com/argoproj/argo-workflows/releases/tag/v3.7.8GitHubgithub.com/argoproj/argo-workflows/security/advisories/GHSA-cv78-6m8q-ph82Refaccess.redhat.com/security/cve/CVE-2026-23960Refbugzilla.redhat.com/show_bug.cgi?id=2431881Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23960.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23960?

CVE-2026-23960 is a medium-severity vulnerability. It was published on January 21, 2026 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-23960?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-23960?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-23960?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23960 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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