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CVE-2026-47396

Full vulnerability record from the local CVENow database.

Description

PraisonAI is a multi-agent teams system. Prior to version 4.6.40, PraisonAI's call server exposes a network-facing agent control API without authentication when `CALL_SERVER_TOKEN` is not configured. The affected component is the `praisonai.api.agent_invoke` router as mounted by `praisonai.api.call`. The authentication helper `verify_token()` fails open when `CALL_SERVER_TOKEN` is unset. Since every sensitive agent-control endpoint depends on this helper, starting the call server without a token allows any reachable client to list agents, inspect agent metadata and instructions, invoke agents, and unregister agents. This is security-relevant because the bundled call server includes the vulnerable router and binds to `0.0.0.0`. As a result, operators who launch the call server without explicitly setting `CALL_SERVER_TOKEN` may unintentionally expose an unauthenticated remote agent control plane. Version 4.6.40 fixes the issue.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-21 16:17:12.760000
Last modified
2026-10-24 19:10:00.127000
View original CVE JSON
{
  "id": "CVE-2026-47396",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-21T16:17:12.760",
  "lastModified": "2026-10-24T19:10:00.127",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PraisonAI is a multi-agent teams system. Prior to version 4.6.40, PraisonAI's call server exposes a network-facing agent control API without authentication when `CALL_SERVER_TOKEN` is not configured. The affected component is the `praisonai.api.agent_invoke` router as mounted by `praisonai.api.call`. The authentication helper `verify_token()` fails open when `CALL_SERVER_TOKEN` is unset. Since every sensitive agent-control endpoint depends on this helper, starting the call server without a token allows any reachable client to list agents, inspect agent metadata and instructions, invoke agents, and unregister agents. This is security-relevant because the bundled call server includes the vulnerable router and binds to `0.0.0.0`. As a result, operators who launch the call server without explicitly setting `CALL_SERVER_TOKEN` may unintentionally expose an unauthenticated remote agent control plane. Version 4.6.40 fixes the issue."
    },
    {
      "lang": "es",
      "value": "PraisonAI es un sistema de equipos multiagente. Antes de la versión 4.6.40, el servidor de llamadas de PraisonAI expone una API de control de agente orientada a la red sin autenticación cuando ’CALL_SERVER_TOKEN’ no está configurado. El componente afectado es el router ’praisonai.api.agent_invoke’ tal como lo monta ’praisonai.api.call’. El asistente de autenticación ’verify_token()’ falla en modo abierto cuando ’CALL_SERVER_TOKEN’ no está establecido. Dado que cada endpoint sensible de control de agente depende de este asistente, iniciar el servidor de llamadas sin un token permite a cualquier cliente alcanzable listar agentes, inspeccionar metadatos e instrucciones de agentes, invocar agentes y anular el registro de agentes. Esto es relevante para la seguridad porque el servidor de llamadas incluido incluye el router vulnerable y se enlaza a ’0.0.0.0’. Como resultado, los operadores que inician el servidor de llamadas sin establecer explícitamente ’CALL_SERVER_TOKEN’ pueden exponer involuntariamente un plano de control de agente remoto no autenticado. La versión 4.6.40 corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "MervinPraison",
          "product": "PraisonAI",
          "versions": [
            {
              "version": "< 4.6.40",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-22T14:13:08.439122Z",
          "id": "CVE-2026-47396",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        },
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/MervinPraison/PraisonAI/commit/ef79b7a0561796ad9807f0f09538c25cc78d3619",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-86qc-r5v2-v6x6",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-86qc-r5v2-v6x6",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}