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CVE-2025-50537

eslint: eslint: Denial of Service via stack overflow when serializing objects with circular references

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · January 26, 2026

Updated · June 28, 2026

Description

A flaw was found in eslint. An attacker can exploit this vulnerability by providing an object with circular references to the RuleTester.run() method. This action causes an infinite recursion within the isSerializable() function, leading to a stack overflow. The primary consequence of this flaw is a Denial of Service (DoS), making the application unavailable.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-502 · Deserialization of Untrusted Data