CVE-2026-86083
CVE-2026-86083 · n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the legacy expression engine generated source text by calling the mutable global JSON.stringify while printing synthetic string literals and interpolating timezone data. An expression could replace JSON.stringify and cause later generated source to contain executable attacker-controlled code. The affected code-generation paths include packages/@n8n/expression-runtime/src/bridge/isolated-vm-bridge.ts and packages/@n8n/tournament/src/ExpressionBuilder.ts, and the issue does not affect the vm expression engine. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
CVSS 7.7 · Alta · EPSS 0,7% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
n8n
- Versiones
- >= 2.38.0, < 2.38.2: Afectada
- >= 2.0.0, < 2.37.7: Afectada
- < 1.123.76: Afectada
Sin corrección publicada
n8n npm
- Intervalos de versiones afectados
- SEMVER: < 1.123.76
Actualiza a 1.123.76
n8n npm
- Intervalos de versiones afectados
- SEMVER: ≥ 2.38.0, < 2.38.2
Actualiza a 2.38.2
n8n npm
- Intervalos de versiones afectados
- SEMVER: ≥ 2.0.0, < 2.37.7
Actualiza a 2.37.7