Threats Tagged 'cve-2026-59919'
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Threats Tagged 'cve-2026-59919'
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Io.netty:netty codec haproxy: Netty: HAProxy V1 Protocol CRLF Injection via AF_UNIX Address (CVE-2026-59919)CVE-2026-59919 0 Netty's HAProxy protocol encoder in the io.netty.handler.codec.haproxy.HAProxyMessageEncoder component improperly handles AF_UNIX socket addresses by not validating for CRLF characters. This allows CRLF injection into the HAProxy V1 protocol header, splitting a single PROXY line into multiple lines and enabling client IP spoofing via a second injected PROXY header line. The vulnerability affects Netty versions 4.2.12.Final and earlier with the codec-haproxy module. The root cause is that AF_UNIX addresses are only checked for length (<=108 bytes) without CRLF validation, unlike IPv4/IPv6 addresses which are format-validated. Exploitation requires user-controlled AF_UNIX addresses used in constructing PROXY protocol headers sent downstream. No patch status is confirmed from the provided data. Join the discussion | GCVE Database | 07/22/2026, 21:51:40 UTC Added: 07/22/2026, 23:22:59 UTC |
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