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CVE-2021-38512

nvd nist
Published: Aug 10, 2021Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

An issue was discovered in the actix-http crate before 3.0.0-beta.9 for Rust. HTTP/1 request smuggling (aka HRS) can occur, potentially leading to credential disclosure.

Affected (11)

Actix
1 product
Actix Http
Fedoraproject
1 product
Fedora
Configuration A
10 vulnerable
Vulnerable SoftwareAffected Versions
Actix
Actix Http
Before 3.0.0
Actix Http
Version 3.0.0
Actix Http
Version 3.0.0 beta1
Actix Http
Version 3.0.0 beta2
Actix Http
Version 3.0.0 beta3
Actix Http
Version 3.0.0 beta4
Actix Http
Version 3.0.0 beta5
Actix Http
Version 3.0.0 beta6
Actix Http
Version 3.0.0 beta7
Actix Http
Version 3.0.0 beta8
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 34

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: cve@mitre.org
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.