SB20260428215 - Input validation error in brace-expansion
Published: April 28, 2026
Security Bulletin ID
SB20260428215
CSH Severity
Medium
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 vulnerability.
1) Input validation error (CVE-ID: CVE-2026-33750)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in sequence generation in expand() when parsing a brace pattern with a zero step value. A remote attacker can supply a specially crafted pattern to cause a denial of service.
User interaction is required to process the crafted input.
Remediation
Install update from vendor's website.