CVE-2026-40345

CVE-2026-40345 · deepmerge-ts: Stack exhaustion when merging recursive object graphs

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values contain self-references at the same property path, the merge logic repeatedly revisits the same pair until Node.js raises RangeError: Maximum call stack size exceeded. Applications that merge attacker-controlled recursive object graphs can synchronously crash the affected process or cause repeated worker restarts. Plain JSON input alone cannot create the recursive graph required to trigger the issue. This issue is fixed in version 8.0.0.

CVSS 8.2 · Alta · EPSS 0,5% · Corrección disponible

Publicación

2026-08-20T16:33:52.702Z

Actualización

2026-08-21T16:28:15.340Z

Pila tecnológica: node

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