Read the docs
TI-2026-24444 Aliases CVE-2026-31892GHSA-3wf5-g532-rcrr

WorkflowTemplate Security Bypass via podSpecPatch in Strict/Secure Reference Mode

Priority HIGH 74CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.

Summary

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From 2.9.0 to before 4.0.2 and 3.7.11, A user who can submit Workflows can completely bypass all security settings defined in a WorkflowTemplate by including a podSpecPatch field in their Workflow submission. This works even when the controller is configured with templateReferencing: Strict, which is specifically documented as a mechanism to restrict users to admin-approved templates. The podSpecPatch field on a submitted Workflow takes precedence over the referenced WorkflowTemplate during spec merging and is applied directly to the pod spec at creation time with no security validation. This vulnerability is fixed in 4.0.2 and 3.7.11.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00554 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed argo-workflows (argoproj): 4.0.2, 3.7.11github.com/argoproj/argo-workflows/v4 (Go): 4.0.2+1 more productRed Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
argoprojargo-workflows4.0.0 to before 4.0.2; 2.9.0 to before 3.7.114.0.2, 3.7.11Patch availableCNA
—github.com/argoproj/argo-workflows/v4 (Go)before 4.0.24.0.2Patch availableGHSA-3wf5-g532-rcrr
—github.com/argoproj/argo-workflows/v3 (Go)before 3.7.113.7.11Patch availableGHSA-3wf5-g532-rcrr
—github.com/argoproj/argo-workflows (Go)2.9.0 and later—No fix listedGHSA-3wf5-g532-rcrr
  • argo-workflows Vendorargoproj Affected 4.0.0 to before 4.0.2; 2.9.0 to before 3.7.11 Fixed in 4.0.2, 3.7.11 Patch available CNA
  • github.com/argoproj/argo-workflows/v4 (Go) Vendor— Affected before 4.0.2 Fixed in 4.0.2 Patch available GHSA-3wf5-g532-rcrr
  • github.com/argoproj/argo-workflows/v3 (Go) Vendor— Affected before 3.7.11 Fixed in 3.7.11 Patch available GHSA-3wf5-g532-rcrr
  • github.com/argoproj/argo-workflows (Go) Vendor— Affected 2.9.0 and later Fixed in — No fix listed GHSA-3wf5-g532-rcrr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:*2.9.0 to before 3.7.11; 4.0.0 to before 4.0.2Vulnerableargoproj
  • cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:* Versions 2.9.0 to before 3.7.11; 4.0.0 to before 4.0.2 Vulnerable ·argoproj

Remediation

  • Fix · CNA argo-workflows (argoproj) Fixed in 4.0.2, 3.7.11
  • Fix · GHSA-3wf5-g532-rcrr github.com/argoproj/argo-workflows/v4 (Go) Fixed in 4.0.2 Advisory →
  • Fix · GHSA-3wf5-g532-rcrr github.com/argoproj/argo-workflows/v3 (Go) Fixed in 3.7.11 Advisory →

Red Hat 1 advisory

  • RHSA-2026:10184 Released 2026-04-23 · Red Hat rating Important
    RHOAI 2.25.5 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-caikit-nlp-rhel9, registry.redhat.io/rhoai/odh-caikit-tgis-serving-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +47

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift AI 2.25Fixed RHSA-2026:10184
Not affected: 2 products
  • Red Hat OpenShift AI (RHOAI)
  • Red Hat OpenShift AI 2.25

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-31892
  2. 2026-10-03 Alias added: GHSA-3wf5-g532-rcrr
  3. 2026-10-08 EPSS moved to the 50th–90th percentile
  4. 2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

Advisory 1

Other 1

  • 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-2026-30604 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
  • TI-2026-30606 Argo Workflows Is Missing Authorization in Sync ConfigMap Provider CVSS 4.0HIGH 8.5
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences