CVE-2025-66626

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Versions 3.6.13 and below and versions 3.7.0 through 3.7.4, contain unsafe untar code that handles symbolic links in archives. Concretely, the computation of a link's target and the subsequent check are flawed. An attacker can overwrite the file /var/run/argo/argoexec with a script of their choice, which would be executed at the pod's start. The patch deployed against CVE-2025-62156 is ineffective against malicious archives containing symbolic links. This issue is fixed in versions 3.6.14 and 3.7.5.

Affected products

Argo Workflows, Kubernetes

Argoproj Argo Workflows

< 3.6.14, 3.7.5

Fix

Available

CVSS 3.1

8.1 HIGH

EPSS

0.6% (45th percentile)

Weakness

CWE-23, CWE-59, CWE-78

NVD status

Analyzed

Published

2025-12-09

No exploit for CVE-2025-66626 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.