{"id":"CVE-2026-25044","aliases":["EUVD-2026-18754","GHSA-gjw9-34gf-rp6m"],"status":"published","title":"Budibase: Command Injection in Bash Automation Step","description":"Budibase is an open-source low-code platform. Prior to version 3.33.4, the bash automation step executes user-provided commands using execSync without proper sanitization or validation. User input is processed through processStringSync which allows template interpolation, potentially allowing arbitrary command execution. This issue has been patched in version 3.33.4.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00474,"percentile":0.41447,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-78"],"published":"2026-04-03T15:38:23Z","modified":"2026-10-28T02:31:11Z","fixes":[{"ecosystem":"npm","package":"@budibase/server","fixed_in":["3.33.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@budibase/server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.33.4"}]}]},{"source":"osv","ecosystem":"npm","package":"@budibase/server","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.33.4"}]}]}],"products":[{"vendor":"budibase","product":"budibase"}],"references":[{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-gjw9-34gf-rp6m","tags":["x_refsource_CONFIRM","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://github.com/Budibase/budibase/releases/tag/3.33.2","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25044","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gjw9-34gf-rp6m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25044.json","tags":["advisory"]},{"url":"https://github.com/Budibase/budibase","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-25044","title":"Budibase: Command Injection in Bash Automation Step","description":"Budibase is an open-source low-code platform. Prior to version 3.33.4, the bash automation step executes user-provided commands using execSync without proper sanitization or validation. User input is processed through processStringSync which allows template interpolation, potentially allowing arbitrary command execution. This issue has been patched in version 3.33.4.","status":"published","published":"2026-04-03T15:38:23.853Z","modified":"2026-04-03T16:45:28.857Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T13:41:19.694734Z"}],"euvd":[{"id":"EUVD-2026-18754","description":"Budibase is an open-source low-code platform. Prior to version 3.33.4, the bash automation step executes user-provided commands using execSync without proper sanitization or validation. User input is processed through processStringSync which allows template interpolation, potentially allowing arbitrary command execution. This issue has been patched in version 3.33.4.","status":"published","published":"2026-04-03T15:38:23Z","modified":"2026-04-03T16:45:28Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:25:16.550278Z"}],"ghsa":[{"id":"GHSA-gjw9-34gf-rp6m","title":"Budibase: Command Injection in Bash Automation Step","description":"**Location**: `packages/server/src/automations/steps/bash.ts`  \n\n#### Description\nThe bash automation step executes user-provided commands using `execSync` without proper sanitization or validation. User input is processed through `processStringSync` which allows template interpolation, potentially allowing arbitrary command execution.\n\n#### Code Reference\n```21:28:packages/server/src/automations/steps/bash.ts\n    const command = processStringSync(inputs.code, context)\n\n    let stdout,\n      success = true\n    try {\n      stdout = execSync(command, {\n        timeout: environment.QUERY_THREAD_TIMEOUT,\n      }).toString()\n```\n\n#### Attack Vector\nAn attacker with access to create or modify automations can inject malicious shell commands by including template syntax that evaluates to command injection payloads (e.g., `$(rm -rf /)`, `; malicious-command`, `| malicious-command`).\n\n#### Impact\n- Remote code execution (RCE)\n- Complete system compromise\n- Data exfiltration\n- Lateral movement within the infrastructure\n\n#### Recommendation\n1. **Immediate**: Disable bash automation step in production until fixed\n2. Implement a whitelist of allowed commands\n3. Use parameterized command execution with proper escaping\n4. Implement command argument validation\n5. Consider using a restricted shell or command sandboxing\n6. Add rate limiting and monitoring for command execution\n\n#### Example Fix\n```typescript\nimport { spawn } from \"child_process\"\n\n// Validate against whitelist\nconst ALLOWED_COMMANDS = [\"echo\", \"date\", \"pwd\"] // Extend as needed\n\nfunction sanitizeCommand(input: string): string {\n  // Remove dangerous characters and command chaining\n  return input.replace(/[;\u0026|`$(){}[\\]]/g, \"\").trim()\n}\n\nfunction validateCommand(cmd: string): boolean {\n  const parts = cmd.split(/\\s+/)\n  return ALLOWED_COMMANDS.includes(parts[0])\n}\n\nexport async function run({ inputs, context }) {\n  if (!inputs.code) {\n    return { stdout: \"Budibase bash automation failed: Invalid inputs\" }\n  }\n\n  const processedCommand = processStringSync(inputs.code, context)\n  const sanitized = sanitizeCommand(processedCommand)\n  \n  if (!validateCommand(sanitized)) {\n    return {\n      success: false,\n      stdout: \"Command not allowed\"\n    }\n  }\n\n  // Use spawn instead of execSync with proper argument handling\n  return new Promise((resolve) =\u003e {\n    const [command, ...args] = sanitized.split(/\\s+/)\n    const proc = spawn(command, args, {\n      timeout: environment.QUERY_THREAD_TIMEOUT,\n    })\n    \n    let stdout = \"\"\n    proc.stdout.on(\"data\", (data) =\u003e { stdout += data })\n    proc.on(\"close\", (code) =\u003e {\n      resolve({ stdout, success: code === 0 })\n    })\n  })\n}\n```","status":"published","published":"2026-04-03T21:53:32Z","modified":"2026-04-09T14:28:11Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:39:51.193071Z"}],"nvd":[{"id":"CVE-2026-25044","description":"Budibase is an open-source low-code platform. Prior to version 3.33.4, the bash automation step executes user-provided commands using execSync without proper sanitization or validation. User input is processed through processStringSync which allows template interpolation, potentially allowing arbitrary command execution. This issue has been patched in version 3.33.4.","status":"published","published":"2026-04-03T16:16:35.87Z","modified":"2026-10-06T22:10:00.247Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"CVE-2026-25044","title":"Budibase: Command Injection in Bash Automation Step","description":"Budibase is an open-source low-code platform. Prior to version 3.33.4, the bash automation step executes user-provided commands using execSync without proper sanitization or validation. User input is processed through processStringSync which allows template interpolation, potentially allowing arbitrary command execution. This issue has been patched in version 3.33.4.","status":"published","published":"2026-04-03T15:38:23.853Z","modified":"2026-10-28T02:31:11.082421394Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:44:59.438965Z"},{"id":"GHSA-gjw9-34gf-rp6m","title":"Budibase: Command Injection in Bash Automation Step","description":"**Location**: `packages/server/src/automations/steps/bash.ts`  \n\n#### Description\nThe bash automation step executes user-provided commands using `execSync` without proper sanitization or validation. User input is processed through `processStringSync` which allows template interpolation, potentially allowing arbitrary command execution.\n\n#### Code Reference\n```21:28:packages/server/src/automations/steps/bash.ts\n    const command = processStringSync(inputs.code, context)\n\n    let stdout,\n      success = true\n    try {\n      stdout = execSync(command, {\n        timeout: environment.QUERY_THREAD_TIMEOUT,\n      }).toString()\n```\n\n#### Attack Vector\nAn attacker with access to create or modify automations can inject malicious shell commands by including template syntax that evaluates to command injection payloads (e.g., `$(rm -rf /)`, `; malicious-command`, `| malicious-command`).\n\n#### Impact\n- Remote code execution (RCE)\n- Complete system compromise\n- Data exfiltration\n- Lateral movement within the infrastructure\n\n#### Recommendation\n1. **Immediate**: Disable bash automation step in production until fixed\n2. Implement a whitelist of allowed commands\n3. Use parameterized command execution with proper escaping\n4. Implement command argument validation\n5. Consider using a restricted shell or command sandboxing\n6. Add rate limiting and monitoring for command execution\n\n#### Example Fix\n```typescript\nimport { spawn } from \"child_process\"\n\n// Validate against whitelist\nconst ALLOWED_COMMANDS = [\"echo\", \"date\", \"pwd\"] // Extend as needed\n\nfunction sanitizeCommand(input: string): string {\n  // Remove dangerous characters and command chaining\n  return input.replace(/[;\u0026|`$(){}[\\]]/g, \"\").trim()\n}\n\nfunction validateCommand(cmd: string): boolean {\n  const parts = cmd.split(/\\s+/)\n  return ALLOWED_COMMANDS.includes(parts[0])\n}\n\nexport async function run({ inputs, context }) {\n  if (!inputs.code) {\n    return { stdout: \"Budibase bash automation failed: Invalid inputs\" }\n  }\n\n  const processedCommand = processStringSync(inputs.code, context)\n  const sanitized = sanitizeCommand(processedCommand)\n  \n  if (!validateCommand(sanitized)) {\n    return {\n      success: false,\n      stdout: \"Command not allowed\"\n    }\n  }\n\n  // Use spawn instead of execSync with proper argument handling\n  return new Promise((resolve) =\u003e {\n    const [command, ...args] = sanitized.split(/\\s+/)\n    const proc = spawn(command, args, {\n      timeout: environment.QUERY_THREAD_TIMEOUT,\n    })\n    \n    let stdout = \"\"\n    proc.stdout.on(\"data\", (data) =\u003e { stdout += data })\n    proc.on(\"close\", (code) =\u003e {\n      resolve({ stdout, success: code === 0 })\n    })\n  })\n}\n```","status":"published","published":"2026-04-03T21:53:32Z","modified":"2026-04-09T14:48:45.067013Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:46:47.822182Z"}]}}