CVE-2021-22960
6.5
MEDIUM
CVSS 3.1
EPSS 0.23%
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.
How to fix CVE-2021-22960
To remediate CVE-2021-22960, upgrade the affected package to a fixed version below.
- Alpine/nodejs—upgrade to 12.22.10-r0 or later
- Debian/nodejs—upgrade to 12.22.12~dfsg-1~deb11u1 or later
Is CVE-2021-22960 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 12.22.10-r0
- from 0, < 12.22.12~dfsg-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |