CVE-2021-22959
nodejs - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.16%
Description
The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.
How to fix CVE-2021-22959
To remediate CVE-2021-22959, upgrade the affected package to a fixed version below.
- Alpine/nodejs—upgrade to 12.22.10-r0 or later
- —upgrade to 12.22.12~dfsg-1~deb11u1 or later
- —upgrade to 12.22.12~dfsg-1~deb11u1 or later
Is CVE-2021-22959 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 12.22.10-r0
- from 0, < 12.22.12~dfsg-1~deb11u1
- 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 |