{ "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": "2026-04-02T15:08:38.165Z" }, "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" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-04-02T15:08:26.814719Z", "id": "CVE-2026-34156", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-02T15:08:38.165Z" } } ] } }