SB2026041447 - Uncontrolled Recursion in nest
Published: April 14, 2026
Security Bulletin ID
SB2026041447
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) Uncontrolled Recursion (CVE-ID: N/A)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled recursion in JsonSocket handleData() in the TCP transport when processing many small valid JSON messages in a single TCP frame. A remote attacker can send many small valid JSON messages in one TCP frame to cause a denial of service.
A payload of approximately 47 KB can trigger a RangeError because the call stack overflows before maxBufferSize is reached.
Remediation
Install update from vendor's website.