← Back to CVE Explorer

CVE-2026-58499

Full vulnerability record from the local CVENow database.

Description

EverOS is a memory runtime for agents. Prior to 1.0.1, EverOS is vulnerable to path traversal in the POST /api/v1/memory/add ingestion endpoint because the per-message sender_id field was not validated as a path-safe identifier, unlike app_id and project_id. During user-memory extraction, sender_id is used as owner_id and joined into the filesystem path where the extracted episode is persisted as a Markdown file, so a sender_id containing ../ sequences could direct writes outside the configured memory root and allow an unauthenticated caller to create or overwrite .md files at locations writable by the server process with partially attacker-influenced content. This issue is fixed in version 1.0.1.

Severity
HIGH
CVSS score
8.2 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-10 21:17:00.197000
Last modified
2026-10-25 15:10:00.147000
View original CVE JSON
{
  "id": "CVE-2026-58499",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-10T21:17:00.197",
  "lastModified": "2026-10-25T15:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "EverOS is a memory runtime for agents. Prior to 1.0.1, EverOS is vulnerable to path traversal in the POST /api/v1/memory/add ingestion endpoint because the per-message sender_id field was not validated as a path-safe identifier, unlike app_id and project_id. During user-memory extraction, sender_id is used as owner_id and joined into the filesystem path where the extracted episode is persisted as a Markdown file, so a sender_id containing ../ sequences could direct writes outside the configured memory root and allow an unauthenticated caller to create or overwrite .md files at locations writable by the server process with partially attacker-influenced content. This issue is fixed in version 1.0.1."
    },
    {
      "lang": "es",
      "value": "EverOS es un tiempo de ejecución de memoria para agentes. Antes de la 1.0.1, EverOS es vulnerable a salto de ruta en el endpoint de ingesta POST /API/v1/memory/add porque el campo sender_id por mensaje no fue validado como un identificador seguro para rutas, a diferencia de app_id y project_id. Durante la extracción de memoria de usuario, sender_id se utiliza como owner_id y se une a la ruta del sistema de archivos donde el episodio extraído se persiste como un archivo Markdown, por lo que un sender_id que contenga secuencias .. /  podría dirigir escrituras fuera de la raíz de memoria configurada y permitir a un llamador no autenticado crear o sobrescribir archivos .md en ubicaciones escribibles por el proceso del servidor con contenido parcialmente influenciado por el atacante. Este problema está solucionado en la versión 1.0.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "EverMind-AI",
          "product": "EverOS",
          "versions": [
            {
              "version": "< 1.0.1",
              "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:N/I:H/A:L",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-13T16:18:10.495611Z",
          "id": "CVE-2026-58499",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/EverMind-AI/EverOS/commit/a10cdcd197747f371b7879a32c2cc3f77471e9c2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/EverMind-AI/EverOS/releases/tag/v1.0.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/EverMind-AI/EverOS/security/advisories/GHSA-c795-2g9c-j48m",
      "source": "[email protected]"
    }
  ]
}