CVE-2026-42297
Argo Workflows Is Missing Authorization in Sync ConfigMap Provider
- State
- Published
- Severity
- 8.5 High
- Published
- May 9, 2026
- Updated
- Jul 15, 2026
- Reserved
- Apr 26, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | 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 | GitHub_M |
| 3.1 | 8.3 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
argo-workflowsargoproj |
|
References
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q
- https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6
- https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5
- https://access.redhat.com/security/cve/CVE-2026-42297vdb-entry
- RHBZ#2468448issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42297.json
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