CVE-2026-1528

Published March 12th, 2026

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CVSS v3

7.5

HIGH

CVSS v2

N/A

Affected

PROJECT

Description

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.

nodejs/undici

An HTTP/1.1 client, written from scratch for Node.js

GitHub

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