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CVE-2025-66626

8.1 · HIGH

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes.

Published Dec 9, 2025CWE-23EPSS 0.68%

Overview

CVE-2025-66626 is a high-severity vulnerability. It was published on December 9, 2025 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/advisories/GHSA-p84v-gxvw-73pfGitHubgithub.com/argoproj/argo-workflows/blob/5291e0b01f94ba864f96f795bb500f2cfc5ad799/workflow/executor/executor.go#L1034-L1037GitHubgithub.com/argoproj/argo-workflows/commit/6b92af23f35aed4d4de8b04adcaf19d68f006de1GitHubgithub.com/argoproj/argo-workflows/security/advisories/GHSA-xrqc-7xgx-c9vhGitHubgithub.com/advisories/GHSA-p84v-gxvw-73pfGitHubgithub.com/argoproj/argo-workflows/security/advisories/GHSA-xrqc-7xgx-c9vh

How CyberStrike helps

Frequently asked questions

What is CVE-2025-66626?

CVE-2025-66626 is a high-severity vulnerability. It was published on December 9, 2025 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2025-66626?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-66626?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-66626?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-66626 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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