MCP Ruby SDK: Unbounded line buffer in stdio transports leads to memory exhaustion (DoS)

Summary The stdio transports in MCP::Server::Transports::StdioTransport and MCP::Client::Stdio read newline-delimited JSON-RPC frames using IOgets with no limit argument. CRuby's IOgets with no limit reads from the current position until the next separator \n with no upper bound on the returned...

CVE-2026-58046

Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, leading to full compromise of the panel...

CVE-2026-58046

CVE-2026-58046 affects Plesk, specifically the XML-RPC API. The root cause is improper neutralization, enabling a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, with potential full panel compromise. No remediation details are pro...

CVE-2026-58046

Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, leading to full compromise of the panel...

EUVD-2026-51019

Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, leading to full compromise of the panel...

CVE-2026-58046

Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, leading to full compromise of the panel...

CVE-2026-66415: Server-Side Request Forgery (SSRF)

Leantime 3.6.2 contains a server-side request forgery and local file inclusion vulnerability that allows authenticated attackers to read internal resources by passing unsanitized user-supplied filenames to filegetcontents in the Blueprints::import method without path validation. Attackers can...

CVE-2026-58046: Improper Neutralization of Special Elements used in an SQL Command

Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, leading to full compromise of the panel...

PT-2026-66544

Name of the Vulnerable Software and Affected Versions Leantime version 3.6.2 Description An authenticated attacker can perform server-side request forgery SSRF and local file inclusion LFI by providing unsanitized filenames to the file get contents function within the Blueprints::import method...

PT-2026-66411

Name of the Vulnerable Software and Affected Versions Plesk affected versions not specified Description Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection, which is a technique used to manipulate database queries. This allow...

CVE-2026-5057

ATEN Unizon RpcProvider Missing Authentication Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ATEN Unizon. Authentication is not required to exploit this vulnerability. The specific flaw exists withi...

CVE-2026-67432 MCP Ruby SDK: Unbounded JSON-RPC request body causes uncontrolled memory allocation in StreamableHTTPTransport

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to 0.23.0, MCP::Server::Transports::StreamableHTTPTransport in the mcp gem reads and parses an entire JSON-RPC POST body without a size limit, allowing an unauthenticated remote attacker to exhaust process...

CVE-2026-67432 MCP Ruby SDK: Unbounded JSON-RPC request body causes uncontrolled memory allocation in StreamableHTTPTransport

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to 0.23.0, MCP::Server::Transports::StreamableHTTPTransport in the mcp gem reads and parses an entire JSON-RPC POST body without a size limit, allowing an unauthenticated remote attacker to exhaust process...

CVE-2026-67432

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to 0.23.0, MCP::Server::Transports::StreamableHTTPTransport in the mcp gem reads and parses an entire JSON-RPC POST body without a size limit, allowing an unauthenticated remote attacker to exhaust process...

CVE-2026-67432

CVE-2026-67432 affects the MCP Ruby SDK before version 0.23.0. The vulnerability exists in MCP::Server::Transports::StreamableHTTPTransport of the mcp gem, which reads and parses an entire JSON-RPC POST body without a size limit, allowing an unauthenticated remote attacker to exhaust memory on th...

EUVD-2026-50499

ATEN Unizon RpcProvider Missing Authentication Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ATEN Unizon. Authentication is not required to exploit this vulnerability. The specific flaw exists withi...

CVE-2026-64208

A flaw was found in the Linux kernel's krb5 crypto library and AFRXRPC component. This vulnerability arises from a lack of proper length checks before decrypting or verifying incoming messages. A remote attacker could exploit this by sending specially crafted messages, leading to a Denial of...

USN-8547-2: Linux kernel (Azure FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; -...

mcpsnoop v0.16.0

Wireshark for MCP. A transparent proxy that shows every real tool call between your AI client and your MCP servers, live in your terminal. The problem The official MCP Inspector connects as its own client, so it never sees what your client Cursor, Claude Code, Codex actually sends your server. An...

CVE-2026-66412

Leantime vulnerability CVE-2026-66412 affects all versions prior to 3.6.2. A broken access control flaw in the tickets.getMilestone JSON-RPC endpoint allows authenticated users to read milestone data from projects they aren’t assigned to by supplying arbitrary integer milestone IDs. Attackers can...