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CVE-2026-24685

Estado: AnalizadaCrítica (9.4)—

OpenProject is an open-source, web-based project management software. Versions prior to 16.6.6 and 17.0.2 have an arbitrary file write vulnerability in OpenProject’s repository diff download endpoint (`/projects/:project_id/repository/diff.diff`) when rendering a single revision via git show. By supplying a specially crafted rev value (for example, `rev=--output=/tmp/poc.txt)`, an attacker can inject git show command-line options. When OpenProject executes the SCM command, Git interprets the attacker-controlled rev as an option and writes the output to an attacker-chosen path.

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As a result, any user with the `:browse_repository` permission on the project can create or overwrite arbitrary files that the OpenProject process user is permitted to write. The written contents consist of git show output (commit metadata and patch), but overwriting application or configuration files still leads to data loss and denial of service, impacting integrity and availability. The issue has been fixed in OpenProject 17.0.2 and 16.6.6.

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.

Acceso autenticado en red (PR:L, AV:N) que inyecta parámetros en git show para escribir ficheros arbitrarios. Impactos: manipulación de datos (sobrescritura de ficheros), DoS (pérdida de datos/disponibilidad) y potencial escalada si se sobrescriben ficheros críticos.

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

Threat Intelligence ProgramApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability ScanningRestrict File and Directory Permissions

Tecnologías afectadas (1)

Openproject — Openproject

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-24685",
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          "options": [
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      "lang": "en",
      "value": "OpenProject is an open-source, web-based project management software. Versions prior to 16.6.6 and 17.0.2 have an arbitrary file write vulnerability in OpenProject’s repository diff download endpoint (`/projects/:project_id/repository/diff.diff`) when rendering a single revision via git show. By supplying a specially crafted rev value (for example, `rev=--output=/tmp/poc.txt)`, an attacker can inject git show command-line options. When OpenProject executes the SCM command, Git interprets the attacker-controlled rev as an option and writes the output to an attacker-chosen path. As a result, any user with the `:browse_repository` permission on the project can create or overwrite arbitrary files that the OpenProject process user is permitted to write. The written contents consist of git show output (commit metadata and patch), but overwriting application or configuration files still leads to data loss and denial of service, impacting integrity and availability. The issue has been fixed in OpenProject 17.0.2 and 16.6.6."
    },
    {
      "lang": "es",
      "value": "OpenProject es un software de gestión de proyectos de código abierto y basado en la web. Las versiones anteriores a la 16.6.6 y 17.0.2 tienen una vulnerabilidad de escritura de archivos arbitraria en el endpoint de descarga de diferencias del repositorio de OpenProject (`/projects/:project_id/repository/diff.diff`) al renderizar una única revisión a través de git show. Al proporcionar un valor de rev especialmente diseñado (por ejemplo, `rev=--output=/tmp/poc.txt)`), un atacante puede inyectar opciones de línea de comandos de git show. Cuando OpenProject ejecuta el comando SCM, Git interpreta el rev controlado por el atacante como una opción y escribe la salida en una ruta elegida por el atacante. Como resultado, cualquier usuario con el permiso :browse_repository en el proyecto puede crear o sobrescribir archivos arbitrarios que el usuario del proceso de OpenProject tiene permiso para escribir. El contenido escrito consiste en la salida de git show (metadatos de commit y parche), pero sobrescribir archivos de aplicación o configuración aún conduce a la pérdida de datos y a la denegación de servicio, afectando la integridad y la disponibilidad. El problema ha sido solucionado en OpenProject 17.0.2 y 16.6.6."
    }
  ],
  "lastModified": "2026-06-17T10:23:25.240",
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