CVE-2026-42183

medium Red Hat
CVSS v3 Base Score
5.3
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.1%
Exploitation probability in 30 days
Top 84% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: May 9, 2026 (62 days ago)
Last Modified: May 9, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in Argo Workflows. This flaw, a nil pointer dereference in the `rbacAuthorization()` function, affects Single Sign-On (SSO) users. When `SSO_DELEGATE_RBAC_TO_NAMESPACE` is enabled, an authenticated SSO user whose claims match a namespace-level Role-Based Access Control (RBAC) rule but not an SSO-namespace rule can trigger a system panic. This can lead to a Denial of Service (DoS) for the affected system.

CWE

CWE-476

Affected Products

Red Hat OpenShift AI (RHOAI)

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com