CVE Watch29 oct 2026

CVE-2026-118772

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({ multi

CVSS

7.5

Alto

EPSS

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KEV

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Exploit Today

0-100

Publicado: 29 oct 2026 · Última mod.: 29 oct 2026 · CWE-1333

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

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.

Referencias oficiales

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