CVE-2026-34156
CriticalCVSS 9.9Exploitation Probability (EPSS)
Very high risk98th percentile - higher than 98% of all known CVEs
Summary
NocoBase prior to version 2.0.28 contains a vulnerability in the Workflow Script Node that allows an authenticated attacker to escape the Node.js vm sandbox and achieve Remote Code Execution as root via prototype chain traversal using console._stdout and console._stderr.
Risk Assessment
An authenticated attacker can gain full root-level control over the NocoBase server, potentially leading to complete platform compromise and access to business data.
Recommendation
Update NocoBase to version 2.0.28 or later.
Other vulnerabilities in NocoBase
See all- CVE-2026-41641High
In NocoBase prior to version 2.0.39, the checkSQL() validation function was not applied on the sqlCollection:update endpoint, allowing attackers with collection management permissions to inject arbitrary SQL and exfiltrate data.
- CVE-2026-88402Critical
SQL injection vulnerability in the checkSQL function in nocobase v2.1.21. Attackers can access sensitive database information via injecting crafted SQL statements.
- CVE-2026-52887Critical
The @nocobase/plugin-notification-in-app-message plugin in NocoBase prior to 2.0.61 contains an SQL injection vulnerability via the GET /api/myInAppChannels:list endpoint. The filter[latestMsgReceiveTimestamp][$lt] parameter is directly inserted into a Sequelize.literal() template without sanitization, allowing an authenticated user to execute malicious PostgreSQL queries, potentially including system commands via COPY ... TO PROGRAM.
- CVE-2026-88403Medium
Server-Side Request Forgery (SSRF) in the serverRequest function in nocobase v2.1.21. Authenticated attackers can scan internal resources via a crafted HTTP request.
- CVE-2026-84701Medium
NocoBase fails to sanitize rich text field values in the read renderer, allowing users with create permissions to store malicious HTML with event handlers. Attackers can write arbitrary markup through the collection API that executes in the browsers of all users viewing the affected record.
- CVE-2026-55410Medium
A vulnerability in NocoBase prior to version 2.1.19 allowed command injection during PostgreSQL backup restoration. An attacker with backup management privileges could inject malicious values into the database.schema field in _metadata.json, which was then interpolated into a shell command executed via child_process.exec().
- CVE-2026-52888Medium
In NocoBase version 2.0.59 and earlier, the checkSQL() function in the collection-sql plugin fails to block access to PostgreSQL system catalog tables such as pg_shadow, pg_roles, and pg_stat_activity. An admin-role user can read password hashes and database metadata through the SQL Collection feature.
- CVE-2026-58468Medium
NocoBase up to version 2.1.20 contains a server-side request forgery (SSRF) vulnerability in the serverRequest wrapper. It allows authenticated administrators to issue arbitrary outbound HTTP requests by supplying malicious URLs to workflow request nodes, custom request action buttons, or the AI plugin.
- CVE-2026-34825Medium
NocoBase prior to version 2.0.30 contains a vulnerability in the plugin-workflow-sql plugin, which substitutes template variables directly into raw SQL strings via getParsedValue() without parameterization or escaping. Any user who triggers a workflow containing a SQL node with template variables from user-controlled data can inject arbitrary SQL.
- CVE-2025-13877Medium
A vulnerability was detected in nocobase up to 1.9.4/2.0.0-alpha.37. An unknown function in the file nocobase\packages\core\auth\src\base\jwt-service.ts of the JWT Service component allows manipulation of the API_KEY argument, resulting in the use of a hard-coded cryptographic key. The attack can be launched remotely but requires high complexity and is difficult to exploit. The exploit is now public.
Original NVD description (English source)
NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions. Prior to version 2.0.28, NocoBase's Workflow Script Node executes user-supplied JavaScript inside a Node.js vm sandbox with a custom require allowlist (controlled by WORKFLOW_SCRIPT_MODULES env var). However, the console object passed into the sandbox context exposes host-realm WritableWorkerStdio stream objects via console._stdout and console._stderr. An authenticated attacker can traverse the prototype chain to escape the sandbox and achieve Remote Code Execution as root. This issue has been patched in version 2.0.28.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

