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@fastify/busboy vulnerable to CRLF injection via multipart Content-Disposition filename and name

CVE-2026-74866 affects @fastify/busboy. CVSS base score 5.8 (GitHub Advisory Database). EPSS 0.00326 (percentile 0.23436), scored 2026-10-04. Affected range: < 3.2.2. Fixed version: 3.2.2.

Published 2026-10-05 23:14:26.322780+00:00

CVE

CVE-2026-74866

Product

@fastify/busboy

CCR priority

23.3 /100 (P4)

CVSS

5.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N · GitHub Advisory Database

EPSS

0.00326 · percentile 0.23436 · 2026-10-04

KEV

no

Affected products

• @fastify/busboy · < 3.2.2 · Fixed version: 3.2.2

Provenance

• GitHub Advisory Database · Source record · observed 2026-10-05 23:10:51.172112+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-74866.html