Integer Overflow or Wraparound Affecting quickjs package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-CONAN-QUICKJS-13610801
  • published17 Oct 2025
  • disclosed16 Oct 2025
  • creditUnknown

Introduced: 16 Oct 2025

CVE-2025-62496  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the js_bigint_from_string() function when parsing strings with an excessively large number of digits. An attacker can cause a heap out-of-bounds write by supplying a crafted string input that triggers an integer overflow during memory allocation calculations.

CVSS Base Scores

version 4.0
version 3.1