SB2025071511 - Inefficient regular expression complexity in juliangruber brace-expansion
Published: July 15, 2025
Security Bulletin ID
SB2025071511
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Inefficient regular expression complexity (CVE-ID: CVE-2025-5889)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions. A remote user can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Remediation
Install update from vendor's website.
References
- https://gist.github.com/mmmsssttt404/37a40ce7d6e5ca604858fe30814d9466
- https://github.com/juliangruber/brace-expansion/pull/65/commits/a5b98a4f30d7813266b221435e1eaaf25a1b0ac5
- https://github.com/juliangruber/brace-expansion/releases/tag/v4.0.1
- https://vuldb.com/?ctiid.311660
- https://vuldb.com/?id.311660
- https://vuldb.com/?submit.585717