CVE-2026-45149
HIGH EPSS 19.5%
Published May 29, 20261mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published May 29, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. From 5.0.0 to before 5.0.6, the max option was being applied too late. When expanding a single large numeric range like {1..10000000}, the sequence generation loop generates all 10 million intermediate elements before the max limit is applied With max=10, the output is correctly limited to 10 items, but the process still allocates ~505 MB and spends ~800ms building the full intermediate array. This vulnerability is fixed in 5.0.6.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
19.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-400 Uncontrolled Resource Consumption Resource Mgmt
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| juliangruber | brace-expansion | * | ≥5.0.0 – <5.0.6 |
References 1
- github.com https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-jxxr-4gwj-5jf2
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.