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.
References8
- access.redhat.com/errata/RHSA-2026:53261
- access.redhat.com/errata/RHSA-2026:53262
- access.redhat.com/errata/RHSA-2026:53263
- access.redhat.com/errata/RHSA-2026:60520
- access.redhat.com/errata/RHSA-2026:65126
- access.redhat.com/errata/RHSA-2026:84734
- access.redhat.com/security/cve/CVE-2026-18621
- bugzilla.redhat.com/show_bug.cgi?id=2510327
Metrics
- CVSS 3.1
-
7.6
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L - EPSS — exploit probability
- 1% percentile: 45 · as of 12 November 2026
- CWE
- CWE-266
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.