CVE Watch26 oct 2026

CVE-2026-116582

Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.0.0 and fr

CVSS

4.7

Medio

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 26 oct 2026 · Última mod.: 26 oct 2026 · CWE-79 · CWE-116

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.0.0 and from 1.5.5 until 1.6.10, the JavaScript-output APIs serialize a RegExp source containing a less-than character without the escaping needed for an HTML script element. An application is affected when it builds regular expression syntax from untrusted input, serializes that RegExp through serialize, serializeAsync, crossSerialize, crossSerializeAsync, crossSerializeStream, Serializer, or compileJSON, and embeds the result in an HTML script element. The crafted source can terminate the element and execute script in the page received by another user. This issue is fixed in version 1.6.10.

Referencias oficiales

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