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CVE-2026-21710

גבוהה 7.5

תיאור (מקור, אנגלית)

A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`. When this occurs, `dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`. * This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**

מדדים

CVSS 3.1
7.5 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS — סבירות ניצול
25% (אחוזון 100) נכון ל-24/9/2026
CWE
CWE-770, CWE-843

מוצרים מושפעים

nodejs: node.js; redhat: enterprise linux; redhat: enterprise linux eus

קישורים