CVE-2026-42586
Published: May 13, 2026
Modified: May 14, 2026
CVSS v3.1
6.8
Description
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the Netty Redis codec encoder (RedisEncoder) writes user-controlled string content directly to the network output buffer without validating or sanitizing CRLF (\r\n) characters. Since the Redis Serialization Protocol (RESP) uses CRLF as the command/response delimiter, an attacker who can control the content of a Redis message can inject arbitrary Redis commands or forge fake responses. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.
| Vendor | Product | Versions |
|---|---|---|
netty | netty | affected >= 4.2.0.Alpha1, < 4.2.13.Finalaffected < 4.1.133.Final |
io.netty | netty-codec-redis | affected >= 4.2.0.Alpha1, < 4.2.13.Finalaffected < 4.1.133.Final |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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