Argo Workflows Allows Access to Archived Workflows with Fake Token in `client` mode
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200 and CWE-290.
Summary
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. When using `--auth-mode=client`, Archived Workflows can be retrieved with a fake or spoofed token via the GET Workflow endpoint: `/api/v1/workflows/{namespace}/{name}` or when using `--auth-mode=sso`, all Archived Workflows can be retrieved with a valid token via the GET Workflow endpoint: `/api/v1/workflows/{namespace}/{name}`. No authentication is performed by the Server itself on `client` tokens. Authentication & authorization is instead delegated to the k8s API server. However, the Workflow Archive does not interact with k8s, and so any token that looks valid will be considered authenticated, even if it is not a k8s token or even if the token has no RBAC for Argo. To handle the lack of pass-through k8s authN/authZ, the Workflow Archive specifically does the equivalent of a `kubectl auth can-i` check for respective methods. In 3.5.7 and 3.5.8, the auth check was accidentally removed on the GET Workflow endpoint's fallback to archived workflows on these lines, allowing archived workflows to be retrieved with a fake token. This vulnerability is fixed in 3.6.2 and 3.5.13.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| argoproj | argo-workflows | 3.5.7 to before 3.5.13; 3.6.0-rc1 to before 3.6.2 | 3.5.13, 3.6.2 | Patch available | CNA |
| — | github.com/argoproj/argo-workflows/v3 (Go) | 3.5.7 to before 3.5.13 | 3.5.13 | Patch available | GHSA-h36c-m3rf-34h9 |
| — | github.com/argoproj/argo-workflows/v3 (Go) | 3.6.0 to before 3.6.2 | 3.6.2 | Patch available | GHSA-h36c-m3rf-34h9 |
- argo-workflows Vendorargoproj Affected 3.5.7 to before 3.5.13; 3.6.0-rc1 to before 3.6.2 Fixed in 3.5.13, 3.6.2 Patch available CNA
- github.com/argoproj/argo-workflows/v3 (Go) Vendor— Affected 3.5.7 to before 3.5.13 Fixed in 3.5.13 Patch available GHSA-h36c-m3rf-34h9
- github.com/argoproj/argo-workflows/v3 (Go) Vendor— Affected 3.6.0 to before 3.6.2 Fixed in 3.6.2 Patch available GHSA-h36c-m3rf-34h9
Remediation
- Fix · CNA argo-workflows (argoproj) Fixed in 3.5.13, 3.6.2
- Fix · GHSA-h36c-m3rf-34h9 github.com/argoproj/argo-workflows/v3 (Go) Fixed in 3.5.13 Advisory →
- Fix · GHSA-h36c-m3rf-34h9 github.com/argoproj/argo-workflows/v3 (Go) Fixed in 3.6.2 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat OpenShift AI (RHOAI)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-53862
- 2026-10-03 Alias added: GHSA-h36c-m3rf-34h9
- 2026-10-05 EPSS moved to the below the 50th percentile
- 2026-10-08 EPSS moved to the 50th–90th percentile
References
More argoproj Argo Workflows vulnerabilities
- TI-2026-22564 Argo Workflows has unauthorized access to Argo Workflows Template CVSS 3.1CRITICAL 9.8
- TI-2026-30603 Argo Workflows: Unauthenticated Memory Exhaustion (DoS) in Webhook Interceptor CVSS 4.0HIGH 8.2
- TI-2026-39371 Argo Workflows: Incomplete fix for CVE-2026-31892: ArtifactGC.PodSpecPatch bypass of Strict/Secure templateReferencing CVSS 4.0HIGH 8.9
- TI-2026-24444 WorkflowTemplate Security Bypass via podSpecPatch in Strict/Secure Reference Mode CVSS 4.0HIGH 8.9
- TI-2026-30604 Argo Workflows: Exposure of artifact repository credentials CVSS 4.0HIGH 8.5
- TI-2025-38478 argo-workflows Zip Slip path traversal allows arbitrary file write and container configuration overwrite CVSS 3.1HIGH 8.8
Sources
- CVE-2024-53862 · CVE Program
- CVE-2024-53862 · NVD
- FIRST EPSS
- GHSA-h36c-m3rf-34h9 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-53862 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences