BIT-GOLANG-2026-78663 Double flow control refund on HTTP/2 server streams in net/http

The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream refunding data for any sent-but-unread portion of the stream, and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configur...

BIT-GOLANG-2026-78660 HTTP/2 transport accepts malformed framing-related headers in net/http

Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a...

BIT-GOLANG-2026-78659 HTTP/2 server memory exhaustion due to Trailer headers in net/http

When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending ...

BIT-GOLANG-2026-56866 HTTP/1 client connection desynchronization after CONNECT rejection in net/http

When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport returns the connection to the idle...

CVE-2026-87111

The User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Referer Header in all versions up to, and including, 6.2.9 due to insufficient input sanitization and output escaping. Thi...

CVE-2026-87111 User Registration PRO <= 6.2.9 - Unauthenticated Stored Cross-Site Scripting via HTTP Referer Header

The User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Referer Header in all versions up to, and including, 6.2.9 due to insufficient input sanitization and output escaping. Thi...

CVE-2026-87111

The User Registration PRO WordPress plugin is vulnerable to Stored Cross-Site Scripting (XSS) in all versions up to and including 6.2.9 . The flaw exists in the premium build of the plugin due to insufficient input sanitization and output escaping when handling the HTTP Referer Header . Unauthent...

EUVD-2026-102814

The User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Referer Header in all versions up to, and including, 6.2.9 due to insufficient input sanitization and output escaping. Thi...

CVE-2026-18659

A flaw was found in Eclipse Jetty. A remote attacker can bypass security constraints by sending HTTP requests containing substrings of configured HTTP methods when method omission rules are used. This issue allows unauthorized users to access protected resources and endpoints that should be...

Rejetto HTTP File Server - Template injection

This vulnerability allows a remote, unauthenticated attacker to execute arbitrary commands on the affected system by sending a specially crafted HTTP request. id: CVE-2024-23692 info: name: Rejetto HTTP File Server - Template injection author: johnk3r severity: critical description: | This...

CLEANSTART-2026-QJ90552 HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently

CVE-2026-97032 affects multiple packages. HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. See references for individual vulnerability details...

CLEANSTART-2026-VR65122 HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a r...

CVE-2026-78663 affects multiple packages. The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream refunding data for any sent-but-unread portion of the stream, and again when a request handler reads the buffered data. See references f...

CLEANSTART-2026-TV04834 When http

CVE-2026-56866 affects multiple packages. When http. See references for individual vulnerability details...

CLEANSTART-2026-BO67242 malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW...

CVE-2026-78669 affects multiple packages. A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGSINITIALWINDOWSIZE values. See references for individual vulnerability...

CLEANSTART-2026-OD75030 Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing

CVE-2026-78660 affects multiple packages. Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. See references for individual vulnerability details...

CLEANSTART-2026-NJ74770 When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the conne...

CVE-2026-94439 affects multiple packages. When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. See references for individual vulnerability details...

CLEANSTART-2026-QU25875 When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request

CVE-2026-78659 affects multiple packages. When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request. See references for individual vulnerability details...

UBUNTU-CVE-2026-18662

In Eclipse Jetty, across various versions of jetty-security, and jetty-eeN-security, two or more security constraints with the same http-method-omission set, and no url-patterns, are not combined properly per Jakarta Servlet Spec. Resulting in later http-method-omission sets overriding previous...

UBUNTU-CVE-2026-18659

In Eclipse Jetty, across various versions of jetty-security, and jetty-eeN-security, and jetty-eeN-servlet, the Jakarta Spec constraints defined as http-method-omission can be bypassed by using substrings of the defined HTTP Methods...

CVE-2026-18516: Improper Encoding or Escaping of Output

An output escaping vulnerability in the Audit Logs component of Crafty Controller allows a remote, unauthenticated attacker to perform stored cross-site scripting via HTTP header injection...