CVE-2025-66626

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.

References

https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xrqc-7xgx-c9vh

https://github.com/argoproj/argo-workflows/commit/6b92af23f35aed4d4de8b04adcaf19d68f006de1

https://github.com/argoproj/argo-workflows/blob/5291e0b01f94ba864f96f795bb500f2cfc5ad799/workflow/executor/executor.go#L1034-L1037

https://github.com/advisories/GHSA-p84v-gxvw-73pf

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-202177

Details

Source: Mitre, NVD

Named Vulnerability: GO-2025-4223Named Vulnerability: GHSA-xrqc-7xgx-c9vh

Risk Information

CVSS v2

CVSS v3

EPSS