Vulnerability in Argoproj Argo-Workflows
CVE-2026-42295
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, the workflow executor logs all artifact repository credentials (S3 access keys, secret keys, GCS service account keys, Azure account keys, Git passwords, etc.) in plaintext on artifact operation. Any user with read access to workflow pod logs can extract these credentials. This issue has been patched in version 4.0.5.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Argoproj Argo-Workflows — versions >= 4.0.0, < 4.0.5
- Argoproj Argo Workflows
Weakness classification (CWE)
References
- github.com/argoproj/argo-workflows/releases/tag/v4.0.5 (Release Notes)
- github.com/argoproj/argo-workflows/security/advisories/GHSA-7vf8-2cr6-54mf (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-42295?
- CVE-2026-42295 is a medium-severity vulnerability in Argoproj Argo-Workflows, classified under Insufficiently Protected Credentials. CVSS score: 4.9/10. Published 2026-05-09.
- How severe is CVE-2026-42295?
- Medium severity. CVSS v3 base score is 4.9 out of 10.