Auth bypass in Argoproj Argo-workflows
CVE-2026-42296
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, a user with create Workflow permission can bypass templateReferencing: Strict to get host…
Vulnerability class: Broken Access Control
EPSS: 0.000 (10.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Argoproj Argo-workflows — versions < 3.7.14, >= 4.0.0, < 4.0.5
- Argoproj Argo_workflows
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-42296?
- CVE-2026-42296 is a high-severity vulnerability in Argoproj Argo-workflows, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-05-09.
- How severe is CVE-2026-42296?
- High severity. CVSS v3 base score is 8.1 out of 10.