The parser in accepts requests with a space (SP) right... · CVE-2021-22959 · GitHub Advisory Database · GitHub

The parser in accepts requests with a space (SP) right...

Moderate severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database

Nov 15, 2021

Published to the GitHub Advisory Database May 24, 2022

Last updated Jan 27, 2023

Severity

Moderate

6.5

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N