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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Argoproj | Argo Workflows | >= 4.0.0, < 4.0.5 |
Related Weaknesses (CWE)
References
- https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad8Patch
- https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5Release Notes
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g7ExploitVendor Advisory
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g7ExploitVendor Advisory
FAQ
What is CVE-2026-42297?
CVE-2026-42297 is a vulnerability with a CVSS score of 8.3 (HIGH). 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 provide...
How severe is CVE-2026-42297?
CVE-2026-42297 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42297?
Check the references section above for vendor advisories and patch information. Affected products include: Argoproj Argo Workflows.