{
  "affected": [
    {
      "affectedData": [
        {
          "product": "budibase",
          "vendor": "Budibase",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.33.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B316A29C-7C2F-4102-ACF6-DDB06B3D0AD5",
              "versionEndExcluding": "3.33.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Budibase is an open-source low-code platform. Prior to version 3.33.4, the plugin file upload endpoint (POST /api/plugin/upload) passes the user-supplied filename directly to createTempFolder() without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing ../ to delete arbitrary directories via rmSync and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access. This issue has been patched in version 3.33.4."
    },
    {
      "lang": "es",
      "value": "Budibase es una plataforma de c\u00f3digo abierto de bajo c\u00f3digo. Antes de la versi\u00f3n 3.33.4, el endpoint de carga de archivos del plugin (POST /api/plugin/upload) pasa el nombre de archivo proporcionado por el usuario directamente a createTempFolder() sin sanear las secuencias de salto de ruta. Un atacante con privilegios de Global Builder puede crear una carga multipart con un nombre de archivo que contenga ../ para eliminar directorios arbitrarios a trav\u00e9s de rmSync y escribir archivos arbitrarios a trav\u00e9s de la extracci\u00f3n de tarball en cualquier ruta del sistema de archivos a la que pueda acceder el proceso de Node.js. Este problema ha sido parcheado en la versi\u00f3n 3.33.4."
    }
  ],
  "id": "CVE-2026-35214",
  "lastModified": "2026-07-24T21:10:00.143",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-35214",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-03T16:04:18.609938Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-03T16:16:41.607",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/Budibase/budibase/commit/6344d06d703660fd05995e61d581593c2349c879"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/Budibase/budibase/pull/18240"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/Budibase/budibase/releases/tag/3.33.4"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@budibase/server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.33.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35214"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-04T06:04:19Z",
    "nvd_published_at": "2026-04-03T16:16:41Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nThe plugin file upload endpoint (`POST /api/plugin/upload`) passes the user-supplied filename directly to `createTempFolder()` without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing `../` to delete arbitrary directories via `rmSync` and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access.\n\n## Severity\n\n- **Attack Vector:** Network \u2014 exploitable via the plugin upload HTTP API\n- **Attack Complexity:** Low \u2014 no special conditions; a single crafted multipart request suffices\n- **Privileges Required:** High \u2014 requires Global Builder role (`GLOBAL_BUILDER` permission)\n- **User Interaction:** None\n- **Scope:** Changed \u2014 the plugin upload feature is scoped to a temp directory, but the traversal escapes to the host filesystem\n- **Confidentiality Impact:** None \u2014 the vulnerability enables deletion and writing, not reading\n- **Integrity Impact:** High \u2014 attacker can delete arbitrary directories and write arbitrary files via tarball extraction\n- **Availability Impact:** High \u2014 recursive deletion of application or system directories causes denial of service\n\n### Severity Rationale\n\n Despite the real filesystem impact, severity is bounded by the requirement for Global Builder privileges (PR:H), which is the highest non-admin role in Budibase. In self-hosted deployments the Global Builder may already have server access, further reducing practical impact. In cloud/multi-tenant deployments the impact is more significant as it could affect the host infrastructure.\n\n## Affected Component\n\n- `packages/server/src/api/controllers/plugin/file.ts` \u2014 `fileUpload()` (line 15)\n- `packages/server/src/utilities/fileSystem/filesystem.ts` \u2014 `createTempFolder()` (lines 78-91)\n\n## Description\n\n### Unsanitized filename flows into filesystem operations\n\nIn `packages/server/src/api/controllers/plugin/file.ts`, the uploaded file\u0027s name is used directly after stripping the `.tar.gz` suffix:\n\n```typescript\n// packages/server/src/api/controllers/plugin/file.ts:8-19\nexport async function fileUpload(file: KoaFile) {\n  if (!file.name || !file.path) {\n    throw new Error(\"File is not valid - cannot upload.\")\n  }\n  if (!file.name.endsWith(\".tar.gz\")) {\n    throw new Error(\"Plugin must be compressed into a gzipped tarball.\")\n  }\n  const path = createTempFolder(file.name.split(\".tar.gz\")[0])\n  await extractTarball(file.path, path)\n\n  return await getPluginMetadata(path)\n}\n```\n\nThe `file.name` originates from the `Content-Disposition` header\u0027s `filename` field in the multipart upload, parsed by formidable (via koa-body 4.2.0). Formidable does not sanitize path traversal sequences from filenames.\n\nThe `createTempFolder` function in `packages/server/src/utilities/fileSystem/filesystem.ts` uses `path.join()` which resolves `../` sequences, then performs destructive filesystem operations:\n\n```typescript\n// packages/server/src/utilities/fileSystem/filesystem.ts:78-91\nexport const createTempFolder = (item: string) =\u003e {\n  const path = join(budibaseTempDir(), item)\n  try {\n    // remove old tmp directories automatically - don\u0027t combine\n    if (fs.existsSync(path)) {\n      fs.rmSync(path, { recursive: true, force: true })\n    }\n    fs.mkdirSync(path)\n  } catch (err: any) {\n    throw new Error(`Path cannot be created: ${err.message}`)\n  }\n\n  return path\n}\n```\n\nThe `budibaseTempDir()` returns `/tmp/.budibase` (from `packages/backend-core/src/objectStore/utils.ts:33`). With a filename like `../../etc/target.tar.gz`, `path.join(\"/tmp/.budibase\", \"../../etc/target\")` resolves to `/etc/target`.\n\n### Inconsistent defenses confirm the gap\n\nThe codebase is aware of the risk in similar paths:\n\n1. **Safe path in `utils.ts`**: The `downloadUnzipTarball` function (for NPM/GitHub/URL plugin sources) generates a random name server-side:\n   ```typescript\n   // packages/server/src/api/controllers/plugin/index.ts:68\n   const name = \"PLUGIN_\" + Math.floor(100000 + Math.random() * 900000)\n   ```\n   This is safe because `name` never contains user input.\n\n2. **Safe path in `objectStore.ts`**: Other uses of `budibaseTempDir()` use UUID-generated names:\n   ```typescript\n   // packages/backend-core/src/objectStore/objectStore.ts:546\n   const outputPath = join(budibaseTempDir(), v4())\n   ```\n\n3. **Sanitization exists but is not applied**: The codebase has `sanitizeKey()` in `objectStore.ts` for sanitizing object store paths, but no equivalent is applied to `createTempFolder`\u0027s input.\n\nThe file upload path is the only caller of `createTempFolder` that passes unsanitized user input.\n\n### Execution chain\n\n1. Authenticated Global Builder sends `POST /api/plugin/upload` with a multipart file whose `Content-Disposition` filename contains path traversal (e.g., `../../etc/target.tar.gz`)\n2. koa-body/formidable parses the upload, setting `file.name` to the raw filename from the header\n3. `controller.upload` \u2192 `sdk.plugins.processUploaded()` \u2192 `fileUpload(file)`\n4. `.endsWith(\".tar.gz\")` check passes (the suffix is present)\n5. `.split(\".tar.gz\")[0]` extracts `../../etc/target`\n6. `createTempFolder(\"../../etc/target\")` is called\n7. `path.join(\"/tmp/.budibase\", \"../../etc/target\")` resolves to `/etc/target`\n8. `fs.rmSync(\"/etc/target\", { recursive: true, force: true })` \u2014 **deletes the target directory recursively**\n9. `fs.mkdirSync(\"/etc/target\")` \u2014 **creates a directory at the traversed path**\n10. `extractTarball(file.path, \"/etc/target\")` \u2014 **extracts attacker-controlled tarball contents to the traversed path**\n\n## Proof of Concept\n\n```bash\n# Create a minimal tarball with a test file\nmkdir -p /tmp/plugin-poc \u0026\u0026 echo \"pwned\" \u003e /tmp/plugin-poc/test.txt\ntar czf /tmp/poc-plugin.tar.gz -C /tmp/plugin-poc .\n\n# Upload with a traversal filename targeting /tmp/pwned (non-destructive demo)\ncurl -X POST \u0027http://localhost:10000/api/plugin/upload\u0027 \\\n  -H \u0027Cookie: \u003cglobal_builder_session_cookie\u003e\u0027 \\\n  -F \"file=@/tmp/poc-plugin.tar.gz;filename=../../tmp/pwned.tar.gz\"\n\n# Result: server executes:\n#   rm -rf /tmp/pwned        (if exists)\n#   mkdir /tmp/pwned\n#   tar xzf \u003cupload\u003e -C /tmp/pwned\n# Verify: ls /tmp/pwned/test.txt\n```\n\n## Impact\n\n- **Arbitrary directory deletion**: `rmSync` with `{ recursive: true, force: true }` deletes any directory the Node.js process can access, including application data directories\n- **Arbitrary file write**: Tarball extraction writes attacker-controlled files to any writable path, potentially overwriting application code, configuration, or system files\n- **Denial of service**: Deleting critical directories (e.g., the application\u0027s data directory, node_modules, or system directories) crashes the application\n- **Potential code execution**: In containerized deployments (common for Budibase) where Node.js runs as root, an attacker could overwrite startup scripts or application code to achieve remote code execution on subsequent restarts\n\n## Recommended Remediation\n\n### Option 1: Sanitize at `createTempFolder` (preferred \u2014 protects all callers)\n\n```typescript\nimport { join, resolve } from \"path\"\n\nexport const createTempFolder = (item: string) =\u003e {\n  const tempDir = budibaseTempDir()\n  const resolved = resolve(tempDir, item)\n\n  // Ensure the resolved path is within the temp directory\n  if (!resolved.startsWith(tempDir + \"/\") \u0026\u0026 resolved !== tempDir) {\n    throw new Error(\"Invalid path: directory traversal detected\")\n  }\n\n  try {\n    if (fs.existsSync(resolved)) {\n      fs.rmSync(resolved, { recursive: true, force: true })\n    }\n    fs.mkdirSync(resolved)\n  } catch (err: any) {\n    throw new Error(`Path cannot be created: ${err.message}`)\n  }\n\n  return resolved\n}\n```\n\n### Option 2: Sanitize at the upload handler (defense-in-depth)\n\nStrip path components from the filename before use:\n\n```typescript\nimport path from \"path\"\n\nexport async function fileUpload(file: KoaFile) {\n  if (!file.name || !file.path) {\n    throw new Error(\"File is not valid - cannot upload.\")\n  }\n  if (!file.name.endsWith(\".tar.gz\")) {\n    throw new Error(\"Plugin must be compressed into a gzipped tarball.\")\n  }\n  // Strip directory components from the filename\n  const safeName = path.basename(file.name).split(\".tar.gz\")[0]\n  const dir = createTempFolder(safeName)\n  await extractTarball(file.path, dir)\n\n  return await getPluginMetadata(dir)\n}\n```\n\nBoth options should ideally be applied together for defense-in-depth.\n\n## Credit\n\nThis vulnerability was discovered and reported by [bugbunny.ai](https://bugbunny.ai).",
  "id": "GHSA-2wfh-rcwf-wh23",
  "modified": "2026-04-04T06:04:19Z",
  "published": "2026-04-04T06:04:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35214"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Budibase/budibase/pull/18240"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Budibase/budibase/commit/6344d06d703660fd05995e61d581593c2349c879"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Budibase/budibase"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Budibase/budibase/releases/tag/3.33.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Budibase: Path traversal in plugin file upload enables arbitrary directory deletion and file write"
}

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Budibase ist eine quelloffene Low-Code-Plattform f\u00fcr die Erstellung interner Anwendungen, wie z. B. Verwaltungspanels.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Budibase ausnutzen, um beliebigen Code auszuf\u00fchren \u2013 sogar mit Root-Rechten \u2013, sich erweiterte Rechte zu verschaffen \u2013 sogar Administratorrechte \u2013, Cross-Site-Scripting-Angriffe durchzuf\u00fchren, Daten zu manipulieren, einen Denial-of-Service-Zustand herbeizuf\u00fchren oder vertrauliche Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-0990 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0990.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0990 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0990"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-2wfh-rcwf-wh23 vom 2026-04-07",
        "url": "https://github.com/advisories/GHSA-2wfh-rcwf-wh23"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-7r9j-r86q-7g45 vom 2026-04-07",
        "url": "https://github.com/advisories/GHSA-7r9j-r86q-7g45"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-fcm4-4pj2-m5hf vom 2026-04-07",
        "url": "https://github.com/advisories/GHSA-fcm4-4pj2-m5hf"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-gjw9-34gf-rp6m vom 2026-04-07",
        "url": "https://github.com/advisories/GHSA-gjw9-34gf-rp6m"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-2wfh-rcwf-wh23 vom 2026-04-07",
        "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-2wfh-rcwf-wh23"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-fcm4-4pj2-m5hf vom 2026-04-07",
        "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-fcm4-4pj2-m5hf"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-gp5x-2v54-v2q5 vom 2026-04-07",
        "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-gp5x-2v54-v2q5"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-gp5x-2v54-v2q5 vom 2026-04-07",
        "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-277c-prw2-rqgh"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-gp5x-2v54-v2q5 vom 2026-04-07",
        "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-4wfw-r86x-qxrm"
      }
    ],
    "source_lang": "en-US",
    "title": "Budibase: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-04-07T22:00:00.000+00:00",
      "generator": {
        "date": "2026-04-08T10:05:47.682+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0990",
      "initial_release_date": "2026-04-07T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-07T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c3.33.4",
                "product": {
                  "name": "Open Source Budibase \u003c3.33.4",
                  "product_id": "T052449"
                }
              },
              {
                "category": "product_version",
                "name": "3.33.4",
                "product": {
                  "name": "Open Source Budibase 3.33.4",
                  "product_id": "T052449-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:budibase:budibase:3.33.4"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c3.32.5",
                "product": {
                  "name": "Open Source Budibase \u003c3.32.5",
                  "product_id": "T052450"
                }
              },
              {
                "category": "product_version",
                "name": "3.32.5",
                "product": {
                  "name": "Open Source Budibase 3.32.5",
                  "product_id": "T052450-fixed",
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                    "cpe": "cpe:/a:budibase:budibase:3.32.5"
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              },
              {
                "category": "product_version",
                "name": "App (SaaS)",
                "product": {
                  "name": "Open Source Budibase App (SaaS)",
                  "product_id": "T052453",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:budibase:budibase:app_%28saas%29"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Budibase"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-35214",
      "product_status": {
        "known_affected": [
          "T052450",
          "T052449"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-35214"
    },
    {
      "cve": "CVE-2026-31818",
      "product_status": {
        "known_affected": [
          "T052450",
          "T052449"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-31818"
    },
    {
      "cve": "CVE-2026-35216",
      "product_status": {
        "known_affected": [
          "T052450",
          "T052449"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-35216"
    },
    {
      "cve": "CVE-2026-25044",
      "product_status": {
        "known_affected": [
          "T052450",
          "T052449"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-25044"
    },
    {
      "cve": "CVE-2026-35218",
      "product_status": {
        "known_affected": [
          "T052450"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-35218"
    },
    {
      "cve": "CVE-2026-25040",
      "product_status": {
        "known_affected": [
          "T052453"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-25040"
    },
    {
      "cve": "CVE-2026-25043",
      "product_status": {
        "known_affected": [
          "T052453"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-25043"
    }
  ]
}