CVE-2025-66626

argoproj/argo-workflows is vulnerable to RCE via ZipSlip and symbolic links

State: Published
Severity: 8.1 High
Published: Dec 9, 2025
Updated: Dec 12, 2025
Reserved: Dec 5, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H	GitHub_M

Weaknesses

CWE-23 Relative Path Traversal
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
argo-workflowsargoproj	github.com/argoproj/argo-workflows/v3 >= 3.7.0, < 3.7.5Affected github.com/argoproj/argo-workflows/v3 < 3.6.14Affected github.com/argoproj/argo-workflows <= 2.5.3-rc4Affected

References

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