CVE-2026-93991Argo Workflows 4.1.0 through 4.1.3 Cross-Namespace Disclosure via Negated Selector
Updated under an hour ago ()
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It affects argoproj argo-workflows. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Weakness (CWE)
- CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
argoproj argo-workflows argoproj:argo_workflows (from the name) | from 4.1.0 before 4.1.4 | CNA record |
References
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-q65w-j2vp-47c4vendor-advisory
- https://github.com/argoproj/argo-workflows/commit/a40972386c097ddf816d2e60e13f058bedca53d9patch
- https://github.com/argoproj/argo-workflows/releases/tag/v4.1.4release-notes
- https://github.com/argoproj/argo-workflowsproduct
- https://www.vulncheck.com/advisories/argo-workflows-4.1.0-through-4.1.3-cross-namespace-disclosure-via-negated-selectorthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.