Resource exhaustion in brace-expansion - #VU140707
Published: August 1, 2026
Vulnerability identifier: #VU140707
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Affected software:
brace-expansion
brace-expansion
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in the expand() function when processing attacker-controlled brace patterns. A remote attacker can send a specially crafted input to cause a denial of service.
The issue can terminate the Node process with an uncatchable out-of-memory error or block the event loop for an extended period.
Remediation
Install security update from vendor's website.