CVE-2026-84706
A flaw was found in Ansible Automation Platform's automation-controller. The custom Credential Type environment-variable injector validates variable names against a deny-list (an ANSIBLE_* prefix check plus a fixed ENV_BLOCKLIST) that omits process-hijacking loader variables such as BASH_ENV, ENV, LD_PRELOAD, LD_LIBRARY_PATH, PYTHONSTARTUP and GIT_SSH_COMMAND. Combined with the credential file injector, a privileged user can write an attacker-controlled script into the execution environment and point BASH_ENV at it, obtaining arbitrary code execution inside the execution-environment container for any job that attaches a credential of that type.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N
- Puntuación base: 7.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.31%
- Percentil entre todas las CVEs puntuadas: 21
- Fecha de la puntuación: 5/10/2026
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
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1059.004Unix Shellexecution90 % - Impacto secundario
T1548.004Elevated Execution with Promptprivilege escalation75 %
Usuario privilegiado explota validación incompleta de variables de entorno en credential injector para ejecutar código arbitrario vía BASH_ENV en contenedor de ejecución; requiere PR:H pero logra ejecución remota en servicios internos.
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 (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-184
Referencias
JSON original (NVD)
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"published": "2026-09-23T20:17:17.677",
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"descriptions": [
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"lang": "en",
"value": "A flaw was found in Ansible Automation Platform's automation-controller. The custom\nCredential Type environment-variable injector validates variable names against a\ndeny-list (an ANSIBLE_* prefix check plus a fixed ENV_BLOCKLIST) that omits\nprocess-hijacking loader variables such as BASH_ENV, ENV, LD_PRELOAD, LD_LIBRARY_PATH,\nPYTHONSTARTUP and GIT_SSH_COMMAND. Combined with the credential file injector, a\nprivileged user can write an attacker-controlled script into the execution environment\nand point BASH_ENV at it, obtaining arbitrary code execution inside the\nexecution-environment container for any job that attaches a credential of that type."
}
],
"lastModified": "2026-09-26T23:16:37.817",
"sourceIdentifier": "secalert@redhat.com"
}