Node.js < 22.23.4, < 24.22.1, < 26.12.1 - HTTP Response Desynchronization on Pooled Keep-Alive Sockets

HTTP Response Desynchronization on Pooled Keep-Alive Sockets vulnerability discovered by hasanfleyah in WordPress npm Node.js versions 22.23.4...

CVE-2026-105481

Node.js HTTP Agent hands a kept-alive socket to a new request without checking for data already waiting on it, so a response written by the server before the request was sent is processed as that request's response keep-alive response desynchronization. Fixed in 22.23.4, 24.22.1 and 26.12.1...

io.netty/netty-codec-http: Netty: HTTP response desynchronization via HttpServerCodec

A flaw was found in Netty's HttpServerCodec. A remote attacker can exploit this vulnerability to cause HTTP response desynchronization, leading to response splitting and potential information disclosure. By sending pipelined requests with informational headers followed by another request, the...

CVE-2026-100666

A flaw was found in Netty's HttpServerCodec. A remote attacker can exploit this vulnerability to cause HTTP response desynchronization, leading to response splitting and potential information disclosure. By sending pipelined requests with informational headers followed by another request, the...

CVE-2026-100666 Netty 4.2.0 through 4.2.16 Response Desynchronization via HttpServerCodec

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

CVE-2026-100666 Netty 4.2.0 through 4.2.16 Response Desynchronization via HttpServerCodec

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

CVE-2026-100666 Netty 4.2.0 through 4.2.16 Response Desynchronization via HttpServerCodec

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

EUVD-2026-63376

aiosmtplib: STARTTLS response injection...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling through the CONNECT handling path and the shared backend transport. An attacker can make another client read attacker-smuggled backend output by sending an HTTP/2 or HTTP/3 CONNECT request with a body that Traefik...

HTTP Response Desynchronization

undici is vulnerable to HTTP Response Desynchronization. The vulnerability is due to improper Content-Length handling after retrying or resuming partial responses, where a stale length can be retained for a differently sized response body, potentially causing downstream response desynchronization...

undici: undici: Response desynchronization via retry interceptor with mismatched Content-Length

A flaw was found in undici. A malicious or faulty upstream server could send a partial response with incorrect length information. When undici's retry interceptor processes this, it may create a response body with a length that does not match the original Content-Length header. This can lead to...

CVE-2026-16728: Inconsistent Interpretation of HTTP Requests

undici's retry interceptor can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume of a partial response. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a malicious or faulty...

PT-2026-65907

Name of the Vulnerable Software and Affected Versions undici versions prior to 6.28.0 undici versions 7.0.0 through 7.28.x undici versions 8.0.0 through 8.8.x Description The retry interceptor can deliver a response where the body length does not match the Content-Length header after a retry or...

CVE-2026-16317: Improper Validation of Integrity Check Value

Missing validation of the outer contenttype byte on TLS 1.3 encrypted records in s2n-tls allows an active man-in-the-middle to silently discard individual application data records without either endpoint detecting the modification. RFC 8446 Section 5.2 requires that the outer contenttype of all...

HTTP Request Smuggling

Overview @sap/approuter is a Node.js based application router Affected versions of this package are vulnerable to HTTP Request Smuggling via the HTTP request handling process. An attacker can gain unauthorized access to sensitive information and disrupt service availability by sending specially...

CVE-2026-27690: Inconsistent Interpretation of HTTP Requests

Due to an HTTP Request Smuggling vulnerability in SAP Approuter, an unauthenticated attacker could send a specially crafted HTTP request that leads to request-response desynchronization. This could result in the exposure of user responses and cause the system to become unavailable. This leads to ...

EUVD-2026-39810

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.errorreply in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing...

CVE-2026-47206 Dragonfly: RESP Protocol Injection via Lua redis.error_reply() in EvalSerializer

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.errorreply in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing...

CVE-2026-47206: Improper Encoding or Escaping of Output

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.errorreply in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing...

PT-2026-52863

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.error reply in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing...