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CVE-2026-28229

Argo Workflows has unauthorized access to Argo Workflows Template

Published: Mar 11, 2026Updated: Mar 20, 2026 Sources: CVE List NVD GHSACWE-863
9.8CRITICAL
NVD MITRE
EPSS Score
0.5%
Top 62.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 4.0.2 and 3.7.11, Workflow templates endpoints allow any client to retrieve WorkflowTemplates (and ClusterWorkflowTemplates). Any request with a Authorization: Bearer nothing token can leak sensitive template content, including embedded Secret manifests. This vulnerability is fixed in 4.0.2 and 3.7.11.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-863

Affected Products

argo workflowsargoproj
On-prem
Cloud & SaaS / container-orchestration
github.com/argoproj/argo-workflows/v3GoOSS Libraries
github.com/argoproj/argo-workflows/v4GoOSS Libraries
argo-workflowsargoproj
On-premDev Tool
Cloud & SaaS / container-orchestration
argoprojoss-projectCloud & SaaSaka argo cd, argo-cd, argo workflows, argo workflow
gopackage-ecosystemOSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-28229
nvd.nist.gov
https://github.com/argoproj/argo-workflows/commit/34afaf9c0c36f1ba8645d483ea4752cfc4a391e8
github.com
and 3 more references View all →

Timeline

Published
Mar 11, 2026
Last Updated
Mar 20, 2026

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