CVE-2026-118772

CVE-2026-118772 · joi: quadratic-time split in `string().email({ multiple: true })` allows denial of service

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joi is a schema description language and data validator for JavaScript. From 17.1.1 until 17.13.9 and 18.3.1, the Joi.string().email({ multiple: true }) rule uses a separator regular expression whose leading whitespace quantifier is retried at every position in a long whitespace run that contains no separator, causing quadratic work during String.prototype.split. The behavior applies to the default separator and every custom separator. Applications that validate attacker-controlled values with the multiple option and no effective prior length limit can have the Node.js event loop blocked for seconds by one request, preventing other work. A .max() rule is not sufficient when abortEarly: false allows the email rule to run after the maximum-length check fails. This vulnerability is fixed in versions 17.13.9 and 18.3.1.

CVSS 7.5 · Высокий · EPSS 0,5% · Публичный эксплойт · Есть исправление

Опубликовано

2026-10-29T18:13:33.771Z

Обновлено

2026-10-29T18:13:33.771Z

Стек: node

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