CVE•Published 2025-12-09•Modified 2026-10-14•1 article on news•5 live references•NVD data

CVE-2025-66626Argoproj · Argo_workflows

Vulnerability data via NVD (ingested)

CVSS v3.1

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 49% of all CVEs

Weaknesses (CWE)

CWE-23Relative Path Traversal CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')CWE-59Improper Link Resolution Before File Access ('Link Following')

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.

Timeline

Published 2025-12-09

Modified 2026-10-14

External references

NVD MITRE Exploit-DB trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2025-66626

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Argoproj Argo Workflows"

All exposed Argoproj Argo Workflows instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Argo Workflows"

HTTP body or banner mentions "Argo Workflows" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2025-66626