CVE-2021-22960

Medium

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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductLlhttp
PublishedNov 3, 2021
First seenNov 3, 2021
Weakness typeCWE-444CWE-444

How to fix

Update
  • llhttp llhttp2.1.4, 6.0.6 or later

Affected products

ProductAffected versionsFixed in
llhttp llhttpv < 2.1.4, 3.0.0 ≤ v < 6.0.62.1.4, 6.0.6
oracle graalvm20.3.4, 21.3.0—
debian debian_linux11.0—

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CVE-2021-22960 · Llhttp · Dark Radar