CVE-2026-18621: Data-sciences-pipeline: dsp: v1 argo template path accepts arbitrary workflow spec, bypassing all v2 security hardening

Severity: high (CVSS 7.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-10 · updated 2026-10-19
Weakness: CWE-266

Description

A flaw was found in Data Science Pipelines (DSP). An attacker with namespace editor privileges can bypass security hardening by submitting a malicious Argo Workflow through the V1 API path. This allows the API server to create pods with elevated privileges, acting as a 'confused deputy' on behalf of the attacker. Successful exploitation grants the attacker node-root access, enabling arbitrary code execution and full control over the underlying node.

Affected products

Red Hat OpenShift AI 2.25: all versions — fixed in 1785189934, 1788256711
Red Hat OpenShift AI 3.3: all versions — fixed in 1785187920
Red Hat OpenShift AI 3.4: all versions — fixed in 1784924951, 1787173417, 1791866195

How to fix

Upgrade to a fixed version: Red Hat OpenShift AI 2.25 1785189934, 1788256711; Red Hat OpenShift AI 3.3 1785187920; Red Hat OpenShift AI 3.4 1784924951, 1787173417, 1791866195. Check the vendor advisory for mitigations.

References

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