CVE-2026-42297
HIGHArgo Workflows Is Missing Authorization in Sync ConfigMap Provider
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q
X_Refsource_Misc x_refsource_misc
https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6
X_Refsource_Misc x_refsource_misc
https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5
Scores
CVSS v3
8.3
EPSS
0.0001
EPSS Percentile
2.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (3)
argoproj/argo-workflows
4.0.0 - 4.0.5Go
argoproj/argo-workflows
>= 4.0.0, < 4.0.5
argoproj/argo_workflows
4.0.0 - 4.0.5
Published
May 09, 2026
Tracked Since
May 09, 2026