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CVE-2026-102281: nest

Severity

7.5 (HIGH)

Vendor

NESTJS

Affected versions

< 11.2.4; >= 12.0.0, < 12.0.2

Fixed version

11.2.4

Patch status

Patched

Published

2026-09-28T22:17:32.050

Modified

2026-09-28T22:17:32.050

Why it matters

High-severity vulnerability requiring prioritized review.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.
• Compare installed versions against the affected version range in the advisory.

Technical summary

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.2.4 and 12.0.2, a single message with a deeply nested object in its pattern can terminate a NestJS microservice using the TCP or RabbitMQ transport. ServerTCP#handleMessage and ServerRMQ#handleMessage pass a client-controlled non-string pattern to JSON.stringify to derive the handler lookup key; sufficiently deep nesting throws RangeError: Maximum call stack size exceeded, and the unhandled promise rejection terminates Node.js under its default behavior. An attacker who can reach the TCP port or publish to the consumed RabbitMQ queue or exchange can crash the service on demand; other transports are not affected because their patterns arrive as strings. This issue is fixed in versions 11.2.4 and 12.0.2.

View the official NVD record for CVE-2026-102281

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.