CVE-2021-22959

    Dashboard / Vulnerabilities / CVE-2021-22959

    CVE-2021-22959

    Published: 15 Nov 2021Last Modified: 8 Jul 2026

    Summary:

    Details: 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: https://www.debian.org/security/2022/dsa-5170, https://hackerone.com/reports/1238709, https://www.oracle.com/security-alerts/cpujan2022.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 9e3645fe9e0c84e1350c4b88cfb9fdf432c97fce
    Fixed -None

    Affected versions

    20.3.4

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-22959 | CVE-DB