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CVE-2026-42297— Argo Workflows Is Missing Authorization in Sync ConfigMap Provider

Quick assessment

Affected
argoproj argo-workflows
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Argo Workflows是Argo项目的一个用于 Kubernetes 的开源容器原生工作流引擎。 Argo Workflows 4.0.0版本至4.0.5之前版本存在安全漏洞，该漏洞源于Sync Service的ConfigMap-backed提供程序对所有CRUD操作未执行授权检查，可能导致任何经过身份验证的用户创建、读取、更新和删除包含同步限制的Kubernetes ConfigMap。

AI Predicted 7.8 Difficulty: Easy EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
argoproj argo-workflows >= 4.0.0, < 4.0.5 affected
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I. Basic Information for CVE-2026-42297

Vulnerability Information
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Vulnerability Title
Argo Workflows Is Missing Authorization in Sync ConfigMap Provider
Source: CVE Program / CVE List V5
Vulnerability Description
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, the Sync Service's ConfigMap-backed provider (server/sync/sync_cm.go) performs zero authorization checks on all CRUD operations (create, read, update, delete). Any authenticated user — including those using fake Bearer tokens — can create, read, update, and delete Kubernetes ConfigMaps containing synchronization limits. This issue has been patched in version 4.0.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Argo Workflows 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Argo Workflows是Argo项目的一个用于 Kubernetes 的开源容器原生工作流引擎。 Argo Workflows 4.0.0版本至4.0.5之前版本存在安全漏洞，该漏洞源于Sync Service的ConfigMap-backed提供程序对所有CRUD操作未执行授权检查，可能导致任何经过身份验证的用户创建、读取、更新和删除包含同步限制的Kubernetes ConfigMap。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
argoproj argo-workflows >= 4.0.0, < 4.0.5 -

II. Public POCs for CVE-2026-42297

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III. Intelligence Information for CVE-2026-42297

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Patches & Fixes for CVE-2026-42297 (1)

Vendor Advisories for CVE-2026-42297 (1)

Same Patch Batch · argoproj · 2026-05-09 · 5 CVEs total

CVE-2026-42296 8.1 HIGH Argo Workflows has incomplete fix for CVE-2026-31892: hostNetwork, securityContext, servic
CVE-2026-42294 Argo Workflows: Unauthenticated Memory Exhaustion (DoS) in Webhook Interceptor
CVE-2026-42183 Argo Workflows: SSO RBAC Delegation Nil Pointer Dereference DoS (gatekeeper.go)
CVE-2026-42295 Argo Workflows: Exposure of artifact repository credentials

IV. Related Vulnerabilities

Same product: argo-workflows
Same vendor: argoproj
Same weakness: CWE-862

V. Comments for CVE-2026-42297

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