CVE-2022-41721

Request smuggling due to improper request handling in golang.org/x/net/http2/h2c

Published: Jan 13, 2023Updated: Apr 4, 2025 Sources: CVE List NVD GHSACWE-444

7.5HIGH

Description

A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-444

Affected Products

golang.org/x/net

oss-project

golang.org/x/net/http2/h2cLibrary

oss-project·US

package-ecosystem

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://go.dev/issue/56352

go.dev

https://go.dev/cl/447396

go.dev

https://pkg.go.dev/vuln/GO-2023-1495

pkg.go.dev

and 6 more references View all →

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