CVE-2026-87862 HSTS cache import drops longer-lived child

Importing a includeSubDomains parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS...

EUVD-2026-105309

Importing a includeSubDomains parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS...

CVE-2026-87862

Importing a includeSubDomains parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS...

CVE-2026-87862

Importing a "includeSubDomains" parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS...

EUVD-2026-105308

When using ambient user credentials, an HTTP request directed to one origin may be dispatched over a connection previously authenticated via Negotiate for a different origin, leaving the request's intended credentials unused...

CVE-2026-87861

When using ambient user credentials, an HTTP request directed to one origin may be dispatched over a connection previously authenticated via Negotiate for a different origin, leaving the request's intended credentials unused...

CVE-2026-87861

When using ambient user credentials, an HTTP request directed to one origin may be dispatched over a connection previously authenticated via Negotiate for a different origin, leaving the request's intended credentials unused...

CVE-2026-113866

A flaw was found in Thunderbird. An information disclosure issue occurs during account setup when the Exchange AutoDiscover feature transmits requests over unencrypted Hypertext Transfer Protocol HTTP. A network attacker monitoring traffic can intercept these plaintext requests, exposing the user...

CVE-2026-101356

A flaw was found in Apache Tomcat. Incorrect object recycling and reuse during the HTTP/2 processing of asynchronous servlets can cause requests and responses to be mixed up between different users. A remote attacker could exploit this vulnerability to trigger unintended data cross-over,...

MCP TypeScript server SDK: Shared transport or server instances delivered one HTTP client's messages to another

Summary In affected versions, an MCP server reached over HTTP could deliver one client's responses and notifications to another client. This happened when clients shared one stateless transport, or one McpServer or Server instance. Messages were matched to a connection by JSON-RPC id alone. SDK...

GHSA-JM63-CQ47-J5JP MCP TypeScript server SDK: Shared transport or server instances delivered one HTTP client's messages to another

Summary In affected versions, an MCP server reached over HTTP could deliver one client's responses and notifications to another client. This happened when clients shared one stateless transport, or one McpServer or Server instance. Messages were matched to a connection by JSON-RPC id alone. SDK...

CVE-2026-86414 leaking host credentials to HTTP proxy

An HTTP proxy can trick libcurl into sending the origin's credentials Basic password, or a Negotiate/Kerberos ticket to the proxy itself, by answering the CONNECT tunnel request with 401 WWW-Authenticate: instead of the expected 407 Proxy-Authenticate:...

CVE-2026-86414

An HTTP proxy can trick libcurl into sending the origin's credentials Basic password, or a Negotiate/Kerberos ticket to the proxy itself, by answering the CONNECT tunnel request with 401 WWW-Authenticate: instead of the expected 407 Proxy-Authenticate:...

CVE-2026-86414 leaking host credentials to HTTP proxy

An HTTP proxy can trick libcurl into sending the origin's credentials Basic password, or a Negotiate/Kerberos ticket to the proxy itself, by answering the CONNECT tunnel request with 401 WWW-Authenticate: instead of the expected 407 Proxy-Authenticate:...

CVE-2026-86414

The libcurl library (affected in versions prior to 8.23.0 ) is vulnerable to an information disclosure flaw where an HTTP proxy can trick the client into leaking origin credentials. By responding to a CONNECT tunnel request with a 401 WWW-Authenticate: header instead of the expected 407 Proxy-Aut...

EUVD-2026-105306

An HTTP proxy can trick libcurl into sending the origin's credentials Basic password, or a Negotiate/Kerberos ticket to the proxy itself, by answering the CONNECT tunnel request with 401 WWW-Authenticate: instead of the expected 407 Proxy-Authenticate:...

CVE-2026-86414

An HTTP proxy can trick libcurl into sending the origin's credentials Basic password, or a Negotiate/Kerberos ticket to the proxy itself, by answering the CONNECT tunnel request with 401 WWW-Authenticate: instead of the expected 407 Proxy-Authenticate:...

CVE-2026-86414

An HTTP proxy can trick libcurl into sending the origin's credentials Basic password, or a Negotiate/Kerberos ticket to the proxy itself, by answering the "CONNECT" tunnel request with 401 "WWW-Authenticate:" instead of the expected 407 "Proxy-Authenticate:"...

GHSA-46JR-4WX8-V453 MCP TypeScript SDK: One HTTP request within the default size limit could exhaust server memory during validation

Summary In affected versions, servers put no limit on how many array elements and object keys they validated in one request. One HTTP request within the default 4 MiB size limit could exhaust the server's memory, and the process aborted with JavaScript heap out of memory. No credentials are neede...

EUVD-2026-105277

A remote HTTP server can set a cookie that curl accepts and writes to a Netscape cookie jar but cannot reload. On the next invocation using the same path for --cookie and --cookie-jar, curl fails before connecting, then the cleanup procedure replaces the jar with an empty file, deleting cookies f...