---
id: CVE-2026-102276
title: >-
  The brace-expansion library generates arbitrary strings containing a common
  prefix and suffix
summary: >-
  The brace-expansion library generates arbitrary strings containing a common
  prefix and suffix. Prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10, crafted brace
  patterns can exhaust the native stack in parseCommaParts because
  parseCommaParts recu…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
  - CWE-674
vendor: juliangruber
product: brace-expansion
affected:
  - 'brace-expansion >= 4.0.0, < 5.0.10'
  - 'brace-expansion >= 3.0.0, < 3.0.7'
  - 'brace-expansion >= 2.0.0, < 2.1.5'
  - brace-expansion < 1.1.19
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T21:17:16.033'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102276'
references:
  - url: >-
      https://github.com/juliangruber/brace-expansion/commit/0bcbfc0a5928c3073d48f42999d1ce4fc1c42fbc
    label: security-advisories@github.com
  - url: >-
      https://github.com/juliangruber/brace-expansion/commit/316359e6019c39b3254c8ba8e25dc586a480652c
    label: security-advisories@github.com
  - url: >-
      https://github.com/juliangruber/brace-expansion/commit/5171e681c0922b7ae8bfaf9a331e309107be6edc
    label: security-advisories@github.com
  - url: >-
      https://github.com/juliangruber/brace-expansion/commit/6735c94873ca570bcdd6a0690033bdd3126379d3
    label: security-advisories@github.com
  - url: >-
      https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-6j4f-fj2g-mc7p
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-28T21:20:54.783Z'
---

## Overview

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10, crafted brace patterns can exhaust the native stack in parseCommaParts because parseCommaParts recursively processes the remainder once per brace group and uses push.apply to pass every element of a very large comma-part array as a function argument. Patterns containing many comma-separated brace groups trigger the recursive path, while the large array triggers the argument-array path without deep recursion. These paths cause recursive and argument-array native stack exhaustion before max or maxLength can limit output, potentially terminating the Node.js process in a process-terminating denial of service. This issue is fixed in versions 1.1.19, 2.1.5, 3.0.7, and 5.0.10.

## Remediation

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