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MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort

Type: advisorySource: Official CVE List1 source record

MuJS 1.3.6 before 1.3.9 contains a heap out-of-bounds read and write vulnerability in Array.prototype.sort that allows attackers to corrupt memory by inflating a simple array's length. Attackers can supply JavaScript that enlarges a dense array's length and calls sort, causing Ap_sort_cmp and Ap_sort_swap to access slots past the buffer and crash the process.

Announced Source revision 1
Original source ↗

CVE-2026-110715

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-110715

MuJS

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://codeberg.org/ccxvii/mujs",
    "vendor": "Artifex Software",
    "product": "MuJS",
    "versions": [
      {
        "status": "affected",
        "version": "1.3.6",
        "lessThan": "1.3.9",
        "versionType": "semver"
      }
    ],
    "collectionURL": "https://codeberg.org/ccxvii/mujs",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-110715

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#30097 · Revision 1
Added to Heist Feed
Publisher date
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