CVE-2026-104852

CVE-2026-104852 · GraphQL Tools has prototype pollution in well-established utility function `mergeDeep`

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

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 12.0.1, the GraphQL Tools utils package's mergeDeep function follows inherited properties while recursively merging source objects and does not exclude __proto__, constructor, or prototype keys. An unauthenticated GraphQL client can alias fields to those names so responses from two subgraphs collide during ordinary supergraph result merging, causing mergeDeep to traverse Object and Function prototypes and overwrite Function.prototype.call with a subgraph-supplied value. This breaks subsequent requests in the process until restart. This issue is fixed in version 12.0.1.

CVSS 8.2 · Alta · EPSS 0,4% · Corrección disponible

Publicación

2026-10-05T22:56:43.779Z

Actualización

2026-10-06T14:48:02.114Z

Pila tecnológica: node

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