In Argo Workflows through 3.1.3, if EXPRESSION_TEMPLATES is enabled and untrusted users…
Priority LOW 31CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
In Argo Workflows through 3.1.3, if EXPRESSION_TEMPLATES is enabled and untrusted users are allowed to specify input parameters when running workflows, an attacker may be able to disrupt a workflow because expression template output is evaluated.
Why it matters now
EPSS 0.00963 61st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed github.com/argoproj/argo-workflows/v3 (Go): 3.1.6
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/argoproj/argo-workflows/v3 (Go) | 3.1.0 to before 3.1.6 | 3.1.6 | Patch available | GHSA-h563-xh25-x54q |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/argoproj/argo-workflows/v3 (Go) Vendor— Affected 3.1.0 to before 3.1.6 Fixed in 3.1.6 Patch available GHSA-h563-xh25-x54q
Remediation
- Fix · GHSA-h563-xh25-x54q github.com/argoproj/argo-workflows/v3 (Go) Fixed in 3.1.6 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-37914
- 2026-10-03 Alias added: GHSA-h563-xh25-x54q
References
Exploit 2
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-2021-37914 · CVE Program
- CVE-2021-37914 · NVD
- FIRST EPSS
- GHSA-h563-xh25-x54q · GitHub Advisory Database · CC BY 4.0
- CVE-2021-37914 · 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