Argo Workflows versions 4.1.0 through 4.1.3 contain an authorization bypass vulnerability in ListArchivedWorkflows that fails to apply cluster-scoped access review when the metadata.namespace field selector uses the NotEquals operator. Attackers with namespace-scoped list permissions can use a negated namespace field selector to retrieve archived workflows from all other namespaces, exposing spec arguments, parameter values, and annotations.

Project Subscriptions

Vendors Products
Argoproj Subscribe
Argo Workflows Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 19 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
Description Argo Workflows versions 4.1.0 through 4.1.3 contain an authorization bypass vulnerability in ListArchivedWorkflows that fails to apply cluster-scoped access review when the metadata.namespace field selector uses the NotEquals operator. Attackers with namespace-scoped list permissions can use a negated namespace field selector to retrieve archived workflows from all other namespaces, exposing spec arguments, parameter values, and annotations.
Title Argo Workflows 4.1.0 through 4.1.3 Cross-Namespace Disclosure via Negated Selector
First Time appeared Argoproj
Argoproj argo Workflows
Weaknesses CWE-639
CPEs cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:*:*:*
Vendors & Products Argoproj
Argoproj argo Workflows
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-19T22:58:11.895Z

Reserved: 2026-09-19T12:04:52.547Z

Link: CVE-2026-93991

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-19T23:17:10.360

Modified: 2026-09-19T23:17:10.360

Link: CVE-2026-93991

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses