Skip to content
CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2026-62380

Netty before 4.2.16.Final SOCKS Proxy Null Byte Injection

Description

Netty (io.netty:netty-codec-socks) versions 4.2.0.Final through 4.2.16.Final and 4.1.x through 4.1.136.Final contain null byte, CRLF, and credential injection vulnerabilities in the SOCKS4 (Socks4ClientEncoder) and SOCKS5 (Socks5ClientEncoder) client encoders, which fail to validate domain address and authentication (username/password) fields. An attacker able to control these fields can inject null bytes or CRLF characters to truncate or alter values, potentially enabling domain spoofing, SOCKS4 userid truncation, authentication data injection, and protocol confusion. Fixed in 4.2.17.Final and 4.1.137.Final.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

netty netty

Default version status: unaffected

  • 4.2.0.Final to < 4.2.16.Finalaffected
  • 4.2.16.Finalunaffected
pkg:maven/io.netty/netty-codec-socks

netty netty

Default version status: unaffected

  • 0 to < 4.1.137.Finalaffected
  • 4.1.137.Finalunaffected
pkg:maven/io.netty/netty-codec-socks

References