SB2026050691 - Denial of service in React Server Components
Published: May 6, 2026
Security Bulletin ID
SB2026050691
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) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-23870)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in server function endpoints when handling specially crafted HTTP requests. A remote attacker can send specially crafted HTTP requests to cause a denial of service.
This can lead to out-of-memory exceptions or excessive CPU usage.
Remediation
Install update from vendor's website.