HIGH

CVE-2026-102281

CVSS v3

7.5

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-09-29

CISA KEV

known exploited

Exploitation

—

SSVC status

Description

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

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2026-09-28
Last Modified: 2026-09-29

Frequently asked questions

What is CVE-2026-102281?

Is CVE-2026-102281 actively exploited?

Active exploitation of CVE-2026-102281 has not been confirmed. Its EPSS score was 0.4% on 2026-09-29, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-102281?

CVE-2026-102281 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is CVE-2026-102281 affecting your environment?

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