CVE-2021-22960 Other in Node

What is CVE-2021-22960?

CVE-2021-22960 is a medium-severity vulnerability in Debian Debian Linux, published on 3 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-444

Which versions are affected by CVE-2021-22960?

It affects 3 products.

Products include Debian Debian Linux, Llhttp Llhttp, Oracle Graalvm.

How do I fix CVE-2021-22960?

Upgrade to a fixed version.

Is CVE-2021-22960 being exploited?

There is no known exploitation of CVE-2021-22960 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2021-22960, CLEANSTART-2026-LA22675, CLEANSTART-2026-LT90473, DEBIAN-CVE-2021-22960, GHSA-px8h-5r3g-hj68.