CVE-2026-42183
Medium · 6.5CVSS
6.5
EPSS
0.6%
Published
May 9, 2026
CISA due date
—
The record
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, a nil pointer dereference in server/auth/gatekeeper.go rbacAuthorization() causes a panic (denial of service) for SSO users whose claims match a namespace-level RBAC rule but not an SSO-namespace rule, when SSO_DELEGATE_RBAC_TO_NAMESPACE=true. This issue has been patched in version 4.0.5.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-112405 Pillow is a Python imaging library. CWE-476
- CVE-2026-112392 Pillow is a Python imaging library. CWE-476
- CVE-2026-100348 kin-openapi is a Go project for handling OpenAPI files. CWE-476
- CVE-2026-100349 kin-openapi is a Go project for handling OpenAPI files. CWE-476
- CVE-2026-109280 ImageMagick 7.1.0-20 before 7.1.2-32 contains a use after free vulnerability in the -fx… CWE-476
- CVE-2026-109272 ImageMagick 7.1.1-31 before 7.1.2-32 contains a NULL pointer dereference in the… CWE-476
- CVE-2026-109258 ImageMagick 7.1.0-20 before 7.1.2-32 contains an invalid memory free vulnerability in the… CWE-476
- CVE-2026-107655 A flaw was found in CUPS. CWE-476