Home/CVE/Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior t
CVE

CVE-2026-28229

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

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.

CRITICAL · CVSS 9.8 EPSS 0.00017
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-863Incorrect Authorization
▤

Affected Products & Versions

2
argoproj argo workflows>= 3.7.0 and < 3.7.11
argoproj argo workflows>= 4.0.0 and < 4.0.2
▤

Affected Packages

4
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/argoproj/argo-workflows
Go github.com/argoproj/argo-workflows/v2
Go github.com/argoproj/argo-workflows/v3 HIGH fixed in 3.7.11
Go github.com/argoproj/argo-workflows/v4 HIGH fixed in 4.0.2
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-56px-hm34-xqj5github.com
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Mar 2026 · 04:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
rhsaRHSA-2026:10184Important
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