CVE-2026-93562

CVE-2026-93562 is an HTTP request smuggling vulnerability in Netty's HTTP/1 decoder (package io.netty/netty-codec-http). The root cause is incomplete validation of malformed Transfer-Encoding headers, allowing a remote attacker with no privileges to inject arbitrary HTTP requests and potentially ...

CVE-2026-93574 Io.netty/netty-codec-http: netty: http request smuggling via post-digit whitespace in chunk-size parsing

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

EUVD-2026-83385

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

CVE-2026-93574

CVE-2026-93574 affects Netty's netty-codec-http component, where an incorrect parsing of HTTP/1.1 chunk-size tokens containing post-digit whitespace enables HTTP request smuggling . A remote attacker with no privileges can exploit this over the network to bypass security controls or access unauth...

CVE-2026-93574

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

CVE-2026-93579 Io.netty/netty-codec-http2: netty: http/2 header field values are not validated by default (cr/lf/nul passthrough)

A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary,...

CVE-2026-93579 Io.netty/netty-codec-http2: netty: http/2 header field values are not validated by default (cr/lf/nul passthrough)

A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary,...

CVE-2026-93576

A flaw was found in Netty netty-codec-smtp. The component does not properly validate Carriage Return CR and Line Feed LF characters in the SMTP command-name field. A remote attacker, if an application routes untrusted input into this field, can embed CR/LF characters to inject arbitrary SMTP...

CVE-2026-93573 Io.netty/netty-codec-http: netty split transfer-encoding fields bypass final-chunked validation and enable request smuggling

A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass Transfer-Encoding header validation by splitting the Transfer-Encoding field across multiple headers, with the last field containing a non-final transfer coding like gzip or deflate. This bypass ca...

CVE-2026-93573

CVE-2026-93573 is a flaw in Netty's HTTP/1.1 decoder (the netty-codec-http component) that allows a remote, unauthenticated attacker to bypass Transfer-Encoding header validation by splitting the field across multiple headers, with the last field containing a non-final transfer coding such as gzi...

CVE-2026-93573 Io.netty/netty-codec-http: netty split transfer-encoding fields bypass final-chunked validation and enable request smuggling

A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass Transfer-Encoding header validation by splitting the Transfer-Encoding field across multiple headers, with the last field containing a non-final transfer coding like gzip or deflate. This bypass ca...

EUVD-2026-82976

A flaw was found in Netty netty-codec-smtp. The component does not properly validate Carriage Return CR and Line Feed LF characters in the SMTP command-name field. A remote attacker, if an application routes untrusted input into this field, can embed CR/LF characters to inject arbitrary SMTP...

CVE-2026-93576 Io.netty/netty-codec-smtp: netty netty-codec-smtp — smtp command-name field is not crlf-validated (incomplete fix of cve-2025-59419)

A flaw was found in Netty netty-codec-smtp. The component does not properly validate Carriage Return CR and Line Feed LF characters in the SMTP command-name field. A remote attacker, if an application routes untrusted input into this field, can embed CR/LF characters to inject arbitrary SMTP...

CVE-2026-93576

A flaw was found in Netty netty-codec-smtp. The component does not properly validate Carriage Return CR and Line Feed LF characters in the SMTP command-name field. A remote attacker, if an application routes untrusted input into this field, can embed CR/LF characters to inject arbitrary SMTP...

CVE-2026-93576

CVE-2026-93576 affects Netty netty-codec-smtp , where the SMTP command-name field is not properly CRLF-validated . This is classified as an incomplete fix of the earlier CVE-2025-59419 , meaning the previous remediation did not fully address the validation gap. The Red Hat-assigned CVSS 3.1 score...

CVE-2026-93569

CVE-2026-93569 affects the netty-codec-http2 component of the Netty library. The vulnerability occurs during the translation of HTTP/1 absolute-form requests to HTTP/2: a Host header mismatch is incorrectly propagated into the HTTP/2 :authority pseudo-header, overriding the authority specified in...

CVE-2026-93569 Io.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authority

A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, Netty incorrectly prioritizes the Host header for the HTTP/2...

CVE-2026-93569 Io.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authority

A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, Netty incorrectly prioritizes the Host header for the HTTP/2...

CVE-2026-93567 Io.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authority

A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leadi...

CVE-2026-93567

Io.netty/netty-codec-http2 is vulnerable when an HTTP/1 authority-form CONNECT request is translated into a malformed HTTP/2 CONNECT frame, resulting in a Host-controlled :authority pseudo-header. This is a network-reachable issue requiring no privileges or user interaction, with a CVSS 3.1 base ...