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CVE-2026-42297

Argo Workflows Is Missing Authorization in Sync ConfigMap Provider

Published: May 9, 2026Updated: May 15, 2026 Sources: CVE List NVDCWE-862
8.3HIGH
NVD MITRE
EPSS Score
0.5%
Top 63.8%
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. 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.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-862

Affected Products

argo-workflowsargoproj
On-premDev Tool
Cloud & SaaS / container-orchestration
argo workflowsargoproj
On-prem
Cloud & SaaS / container-orchestration
argoprojoss-projectCloud & SaaSaka argo cd, argo-cd, argo workflows, argo workflow

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-xchc-cqwg-g76q
github.com
https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6
github.com
https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5
github.com

Timeline

Published
May 9, 2026
Last Updated
May 15, 2026

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