CVE-2026-13149
brace-expansion Denial of Service
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.
INFO
Published Date :
June 30, 2026, 8:30 a.m.
Last Modified :
June 30, 2026, 8:30 a.m.
Remotely Exploit :
Yes !
Source :
seal
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | 22e2d327-25fe-45d7-9f0c-dcd23b7108df |
Solution
- Upgrade the brace-expansion library to the latest version.
- Review brace expansion usage for potential abuse.
- Implement input validation for brace expansion.
- Monitor CPU usage for denial of service attacks.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-13149 vulnerability anywhere in the article.