4344043 matches found
CVE-2026-6540
Technical details about CVE-2026-6540 are not publicly available in the provided documents. Monitor for updated advisories for affected products, impact scope, and remediation guidance.
CVE-2026-41186
CVE-2026-41186 affects Calico components (kube-controllers and Goldmane) where an opt-in Go pprof debug listener, if enabled, binds to 0.0.0.0 and allows unauthenticated access. This exposes the process heap, goroutine stacks (including function arguments), and command-line arguments to any pod w...
CVE-2026-41187 Calico Tier Authorization Bypass via DeleteCollection
Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard...
CVE-2026-41186 Unauthenticated Go pprof exposure in Calico debug server
When Calico's shared debug server is enabled disabled by default, the Calico kube-controllers and Goldmane components bind their Go pprof debug listener to 0.0.0.0 without authentication. Any pod with network reachability to the listener can retrieve the process heap, goroutine stacks including...
CVE-2026-6540 L7 policy bypass via unnormalized HTTP path matching
Calico's Application Layer Policy disabled by default, which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes...
CVE-2026-41187 Calico Tier Authorization Bypass via DeleteCollection
Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard...
CVE-2026-41186 Unauthenticated Go pprof exposure in Calico debug server
When Calico's shared debug server is enabled disabled by default, the Calico kube-controllers and Goldmane components bind their Go pprof debug listener to 0.0.0.0 without authentication. Any pod with network reachability to the listener can retrieve the process heap, goroutine stacks including...
CVE-2026-6540 L7 policy bypass via unnormalized HTTP path matching
Calico's Application Layer Policy disabled by default, which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes...
EUVD-2026-51153
Calico's Application Layer Policy disabled by default, which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes...
EUVD-2026-51154
Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard...
EUVD-2026-51155
When Calico's shared debug server is enabled disabled by default, the Calico kube-controllers and Goldmane components bind their Go pprof debug listener to 0.0.0.0 without authentication. Any pod with network reachability to the listener can retrieve the process heap, goroutine stacks including...
MCP Ruby SDK: Ruby SSE Session Poisoning
Summary Vulnerability: Missing Session Ownership Validation in the Ruby MCP SDK's Streamable and SSE HTTP transport implementation. Any attacker with a stolen session ID can execute tools with the victim's session. This is a silent attack - the victim's session is compromised and being used for...
GHSA-5P9G-J988-PCWV MCP Ruby SDK: Ruby SSE Session Poisoning
Summary Vulnerability: Missing Session Ownership Validation in the Ruby MCP SDK's Streamable and SSE HTTP transport implementation. Any attacker with a stolen session ID can execute tools with the victim's session. This is a silent attack - the victim's session is compromised and being used for...
EUVD-2026-50501
MCP Ruby SDK: Ruby SSE Session Poisoning...
MCP Ruby SDK: Unbounded JSON-RPC request body causes uncontrolled memory allocation in StreamableHTTPTransport
Summary An unauthenticated remote attacker can force any MCP Ruby SDK server using MCP::Server::Transports::StreamableHTTPTransport to allocate gigabytes of memory by sending a single oversized JSON-RPC POST. The transport reads the entire HTTP body into a Ruby String and parses it with...
GHSA-H669-8M4G-R2HC MCP Ruby SDK: Unbounded JSON-RPC request body causes uncontrolled memory allocation in StreamableHTTPTransport
Summary An unauthenticated remote attacker can force any MCP Ruby SDK server using MCP::Server::Transports::StreamableHTTPTransport to allocate gigabytes of memory by sending a single oversized JSON-RPC POST. The transport reads the entire HTTP body into a Ruby String and parses it with...
EUVD-2026-50502
MCP Ruby SDK: Unbounded JSON-RPC request body causes uncontrolled memory allocation in StreamableHTTPTransport...
MCP Ruby SDK: Unbounded session retention in StreamableHTTPTransport allows memory exhaustion via initialize flood
Summary In its default configuration, MCP::Server::Transports::StreamableHTTPTransport never expires sessions. Every successful initialize request stores a new ServerSession and a session record under a fresh UUID, and the only path that removes them is an explicit client-issued HTTP DELETE. An...
GHSA-52JP-GJ8W-J6XH MCP Ruby SDK: Unbounded session retention in StreamableHTTPTransport allows memory exhaustion via initialize flood
Summary In its default configuration, MCP::Server::Transports::StreamableHTTPTransport never expires sessions. Every successful initialize request stores a new ServerSession and a session record under a fresh UUID, and the only path that removes them is an explicit client-issued HTTP DELETE. An...