CVE-2021-22960

PoC —

CVSS 3.1

6.5 medium

EPSS

2%p84

Published

Nov 3, 2021 (Nov 3, 2021)

Modified

Jun 17, 2026

Description

The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions.

Vendors: llhttp oracle debian
Products: llhttp, graalvm, debian linux
Weakness: CWE-444
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (2.5%)

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