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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.68%
- Percentil entre todas las CVEs puntuadas: 51
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Vulnerabilidad en descompresión de archivos (CWE-23, CWE-78) que permite sobrescribir /var/run/argo/argoexec con script malicioso ejecutado en inicio del pod. Vector AV:N/PR:N/UI:N apunta a explotación remota de aplicación expuesta; el impacto es ejecución de código arbitrario y potencialmente escal
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-23, CWE-78
- CWE-59
Referencias
- https://github.com/advisories/GHSA-p84v-gxvw-73pf
- https://github.com/argoproj/argo-workflows/blob/5291e0b01f94ba864f96f795bb500f2cfc5ad799/workflow/executor/executor.go#L1034-L1037
- https://github.com/argoproj/argo-workflows/commit/6b92af23f35aed4d4de8b04adcaf19d68f006de1
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xrqc-7xgx-c9vh
- https://github.com/advisories/GHSA-p84v-gxvw-73pf
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xrqc-7xgx-c9vh
JSON original (NVD)
Mostrar
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