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CVE-2021-22959

nvd nist
Published: Nov 15, 2021Modified: Nov 21, 2024

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Exploitability: 3.9 / Impact: 2.5
Source: NVD

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.

Affected (5)

Llhttp
1 product
Llhttp
Oracle
1 product
Graalvm
Debian
1 product
Debian Linux
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Llhttp
Llhttp
Before 2.1.4
Llhttp
From 3.0.0 to 6.0.6
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Oracle
Graalvm
Version 20.3.4
Graalvm
Version 21.3.0
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 11.0

Related CWEs

CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References (6)

Source: support@hackerone.com
ExploitIssue TrackingThird Party Advisory
Source: support@hackerone.com
Mailing ListThird Party Advisory
Source: support@hackerone.com
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory

Timeline

No history available yet.