high8.3
CVE-2026-42297
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/argoproj/argo-workflows/v4 | >= 4.0.0, < 4.0.5 | 4.0.5 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Argoproj | Argo Workflows | from 4.0.0 before 4.0.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-xchc-cqwg-g76q
- 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://nvd.nist.gov/vuln/detail/CVE-2026-42297
- https://access.redhat.com/security/cve/CVE-2026-42297
- https://bugzilla.redhat.com/show_bug.cgi?id=2468448
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42297.json