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CVE-2026-39891

Estado: AnalizadaAlta (8.8)—

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the create_agent_centric_tools() function returns tools (like acp_create_file) that process file content using template rendering. When user input from agent.start() is passed directly into these tools without escaping, template expressions in the input are executed rather than treated as literal text. This vulnerability is fixed in 4.5.115.

CVSS

Probabilidad de explotación (EPSS)

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.

AV:N, PR:L indica acceso remoto con privilegios, explotación de servicio remoto (T1210). Template injection en herramientas de agentes permite ejecución de código (T1059) y manipulación de ficheros (T1565.001).

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

Privileged Account ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentRestrict File and Directory Permissions

Tecnologías afectadas (1)

Praison — Praisonai

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-39891",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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            },
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            },
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              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-09T13:49:06.234674Z"
        }
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          "userInteraction": "NONE",
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          "privilegesRequired": "LOW",
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          "versions": [
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            }
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  "published": "2026-04-08T21:17:01.403",
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      "value": "PraisonAI is a multi-agent teams system. Prior to 4.5.115, the create_agent_centric_tools() function returns tools (like acp_create_file) that process file content using template rendering. When user input from agent.start() is passed directly into these tools without escaping, template expressions in the input are executed rather than treated as literal text. This vulnerability is fixed in 4.5.115."
    },
    {
      "lang": "es",
      "value": "PraisonAI es un sistema de equipos multiagente. Antes de la 4.5.115, la función create_agent_centric_tools() devuelve herramientas (como acp_create_file) que procesan el contenido de archivos mediante renderizado de plantillas. Cuando la entrada del usuario de agent.start() se pasa directamente a estas herramientas sin escapar, las expresiones de plantilla en la entrada se ejecutan en lugar de ser tratadas como texto literal. Esta vulnerabilidad se corrige en la 4.5.115."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
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