---
id: CVE-2026-88362
title: >-
  MuJS e892c9fdb contains an incorrect numeric conversion vulnerability in
  jsR_isindex() in jsrun.c
summary: >-
  MuJS e892c9fdb contains an incorrect numeric conversion vulnerability in
  jsR_isindex() in jsrun.c. A specially crafted JavaScript input containing an
  excessively large numeric array index can cause an out-of-range floating-point
  value to…
severity: none
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:08:55.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88362'
references:
  - url: 'https://bugs.ghostscript.com/show_bug.cgi?id=709636'
    label: cve@mitre.org
  - url: >-
      https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mujs.git/commit/?id=8a32c397b28fe45747ac4e9e4f3dca049825eda7
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T15:45:56.654Z'
---

## Overview

MuJS e892c9fdb contains an incorrect numeric conversion vulnerability in jsR_isindex() in jsrun.c. A specially crafted JavaScript input containing an excessively large numeric array index can cause an out-of-range floating-point value to be converted to an integer without proper range validation. This results in undefined behavior and can cause process termination, leading to denial of service.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.