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CVE-2021-22959

Date: November 15, 2021

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.

Language: TYPE_SCRIPT

Severity Score

Related Resources (11)

https://www.oracle.com/security-alerts/cpujan2022.html
https://hackerone.com/reports/1238709
https://nvd.nist.gov/vuln/detail/CVE-2021-22959
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-22959
https://github.com/nodejs/llhttp/commit/ca84b6f903bc853c791ad14007a42f40ae34999e
https://access.redhat.com/security/cve/CVE-2021-22959
https://www.debian.org/security/2022/dsa-5170
https://security.alpinelinux.org/vuln/CVE-2021-22959
https://security-tracker.debian.org/tracker/CVE-2021-22959
https://nodejs.org/en/blog/vulnerability/oct-2021-security-releases/
https://www.mend.io/vulnerability-database/CVE-2021-22959

Severity Score

Weakness Type (CWE)

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CWE-444

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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