CVE-2026-13149

CVE Details

Release Date:	2026-06-30
Impact:	Important	What is this?

Description

brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.

See more information about CVE-2026-13149 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.5
Vector String:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 9 (nodejs)	ELSA-2026-47057	2026-07-31
Oracle Linux version 9 (nodejs)	ELSA-2026-47058	2026-07-29
Oracle Linux version 9 (nodejs-nodemon)	ELSA-2026-47057	2026-07-31
Oracle Linux version 9 (nodejs-nodemon)	ELSA-2026-47058	2026-07-29
Oracle Linux version 9 (nodejs-packaging)	ELSA-2026-47057	2026-07-31
Oracle Linux version 9 (nodejs-packaging)	ELSA-2026-47058	2026-07-29