CVE-2026-72903

{
  "id": "CVE-2026-72903",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-10T21:17:24.980",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.235, a malicious SFTP server can return a backslash traversal filename through entry.name. In tabby-ssh/src/session/sftp.ts, SFTPSession.readdir() and _makeFile() use POSIX path processing that preserves the backslashes as ordinary filename characters. In tabby-ssh/src/components/sftpPanel.component.ts, downloadFolderRecursive() propagates item.name into the local relative path. In tabby-electron/src/services/platform.service.ts, ElectronDirectoryDownload.createFile() passes that path to Windows-native path.join(), and in tabby-electron/src/sftpContextMenu.ts, EditSFTPContextMenu.edit() passes item.name to path.join() for the temporary edit path. Windows interprets the preserved backslashes and parent-directory components as traversal, allowing attacker-controlled content to be created or overwritten outside the selected download directory or temporary edit directory. This issue is fixed in version 1.0.235."
    },
    {
      "lang": "es",
      "value": "Tabby (anteriormente Terminus) es un emulador de terminal altamente configurable. Antes de la versión 1.0.235, un servidor SFTP malicioso puede devolver un nombre de archivo de recorrido de barra invertida a través de entry.name. En tabby-ssh/src/session/sftp.ts, SFTPSession.readdir() y _makeFile() utilizan procesamiento de rutas POSIX que conserva las barras invertidas como caracteres de nombre de archivo ordinarios. En tabby-ssh/src/components/sftpPanel.component.ts, downloadFolderRecursive() propaga item.name en la ruta relativa local. En tabby-electron/src/services/platform.service.ts, ElectronDirectoryDownload.createFile() pasa esa ruta a path.join() nativo de Windows, y en tabby-electron/src/sftpContextMenu.ts, EditSFTPContextMenu.edit() pasa item.name a path.join() para la ruta de edición temporal. Windows interpreta las barras invertidas conservadas y los componentes de directorio padre como recorrido, permitiendo que contenido controlado por el atacante sea creado o sobrescrito fuera del directorio de descarga seleccionado o del directorio de edición temporal. Este problema está solucionado en la versión 1.0.235."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Eugeny",
          "product": "tabby",
          "versions": [
            {
              "version": "< 1.0.235",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-11T14:56:00.867455Z",
          "id": "CVE-2026-72903",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "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/Eugeny/tabby/commit/3a4a41431a61d41dd51d4119e60cad9bf13c3399",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Eugeny/tabby/releases/tag/v1.0.235",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Eugeny/tabby/security/advisories/GHSA-59p9-8gwf-v9v7",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Eugeny/tabby/security/advisories/GHSA-59p9-8gwf-v9v7",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}