{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-34156", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-25T20:12:04.196Z", "datePublished": "2026-03-31T13:33:11.325Z", "dateUpdated": "2026-03-31T13:33:11.325Z"}, "containers": {"cna": {"title": "NocoBase Affected by Sandbox Escape to RCE via console._stdout Prototype Chain Traversal in Workflow Script Node", "problemTypes": [{"descriptions": [{"cweId": "CWE-913", "lang": "en", "description": "CWE-913: Improper Control of Dynamically-Managed Code Resources", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/nocobase/nocobase/security/advisories/GHSA-px3p-vgh9-m57c", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nocobase/nocobase/security/advisories/GHSA-px3p-vgh9-m57c"}, {"name": "https://github.com/nocobase/nocobase/pull/8967", "tags": ["x_refsource_MISC"], "url": "https://github.com/nocobase/nocobase/pull/8967"}, {"name": "https://github.com/nocobase/nocobase/releases/tag/v2.0.28", "tags": ["x_refsource_MISC"], "url": "https://github.com/nocobase/nocobase/releases/tag/v2.0.28"}], "affected": [{"vendor": "nocobase", "product": "nocobase", "versions": [{"version": "< 2.0.28", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-31T13:33:11.325Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-px3p-vgh9-m57c", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-34156", "lastModified": "2026-03-31T14:16:12.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-31T14:16:12.170", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nocobase/nocobase/pull/8967"}, {"source": "security-advisories@github.com", "url": "https://github.com/nocobase/nocobase/releases/tag/v2.0.28"}, {"source": "security-advisories@github.com", "url": "https://github.com/nocobase/nocobase/security/advisories/GHSA-px3p-vgh9-m57c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-913"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}