Description
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.
Published: 2026-08-03
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-rgw5-rvv9-x895 brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation
History

Tue, 04 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Mon, 03 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 03 Aug 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Juliangruber
Juliangruber brace-expansion
Vendors & Products Juliangruber
Juliangruber brace-expansion

Mon, 03 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
Description The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.
Title brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation
Weaknesses CWE-400
CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Juliangruber Brace-expansion
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-03T20:12:20.435Z

Reserved: 2026-08-03T15:47:09.654Z

Link: CVE-2026-69152

cve-icon Vulnrichment

Updated: 2026-08-03T20:12:15.322Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-03T16:33:36Z

Links: CVE-2026-69152 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T18:30:06Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption

  • CWE-770

    Allocation of Resources Without Limits or Throttling