SB2026031335 - Denial of service in qs
Published: March 13, 2026
Security Bulletin ID
SB2026031335
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 security vulnerability.
1) Input validation error (CVE-ID: CVE-2026-2391)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due the arrayLimit option in qs does not enforce limits for comma-separated values when comma: true is enabled. A remote attacker can pass overly large string to the application and consume all available memory resources, leading to a denial of service condition.
Remediation
Install update from vendor's website.