When Agents Look like Beacons: NIDS Evasion by Model Context Protocol Traffic

The Model Context Protocol MCP standardizes communication between autonomous Artificial Intelligence AI agents and remote tools over Streamable HTTP. This shift introduces a class of machine-generated, authenticated, and high-frequency JSON-RPC traffic directly into enterprise networks. Enterpris...

CVE-2026-92604: Improper Limitation of a Pathname to a Restricted Directory

Scirius through 3.8.0 contains an arbitrary file write vulnerability in the PCAP filestore upload endpoint that allows default User role users to write attacker-controlled JSON content to filesystem paths. Attackers can supply path traversal sequences in the uploaded document's id field to escape...

PT-2026-94119

Name of the Vulnerable Software and Affected Versions djust versions prior to 1.0.7 Description For views that utilize state snapshots, the state json snapshot embedded in the client page is restored upon reconnection as trusted view state without an integrity check. This allows a client to modif...

PT-2026-93877

Scirius through 3.8.0 contains an arbitrary file write vulnerability in the PCAP filestore upload endpoint that allows default User role users to write attacker-controlled JSON content to filesystem paths. Attackers can supply path traversal sequences in the uploaded document's id field to escape...

GitLab 15.3 < 19.1.8 / 19.2 < 19.2.6 / 19.3 < 19.3.2 (CVE-2026-78252)

The version of GitLab installed on the remote host is affected by a vulnerability, as follows: - GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an authenticated user could ha...

CVE-2026-86784: Improper Neutralization of Input During Web Page Generation

The Visualizer WordPress plugin before 4.0.8 does not sanitise and escape a chart's JSON data source configuration before outputting it back in the chart editor, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any higher-privileged user, such...

Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : Snapcast vulnerability (USN-8767-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8767-1 advisory. It was discovered that Snapcast incorrectly handled crafted JSON-RPC requests. A remote attacker could possibly use this issue to execute...

PT-2026-93789

Name of the Vulnerable Software and Affected Versions rmcp versions prior to 2.0.0 Description The stateful Streamable HTTP server in the rmcp crate contains a memory leak that can lead to a Denial of Service. An unauthenticated remote attacker can exploit this by sending a well-formed JSON-RPC...

Security Bulletin: IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in json

Summary IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in json Vulnerability Details CVEID:CVE-2026-71847 DESCRIPTION: Ruby JSON is a JSON implementation for Ruby. From 2.20.0 until 2.21.2, Ruby's JSON native C extension clears the consumed JSON::ResumableParser input...

CVE-2026-83458

Vulnerability in the Helidon product of Oracle Fusion Middleware component: JSON. Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can...

CVE-2026-76821

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in...

EUVD-2026-79757

Vulnerability in the Helidon product of Oracle Fusion Middleware component: JSON. Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can...

CVE-2026-83458

Oracle Helidon (part of Oracle Fusion Middleware), specifically the JSON component , is affected in supported versions 4.0.0 through 4.5.4 . An unauthenticated attacker with network access via HTTP can exploit this with low complexity to cause a partial denial of service (partial DOS) of Helidon....

CVE-2026-76821 OpenCTI: User-Controlled ReDoS in JSON Ingestion Mapper

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in...

CVE-2026-76821

OpenCTI , an open-source cyber threat intelligence platform, is vulnerable to user-controlled ReDoS in the JSON ingestion mapper's extractWithRegexp formula function (prior to 7.260706.0 ). The function compiled a user-supplied regular expression with the JavaScript RegExp engine without validati...

EUVD-2026-79240

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in...

CVE-2026-76821 OpenCTI: User-Controlled ReDoS in JSON Ingestion Mapper

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in...

Security Bulletin: Denial of Service Security Vulnerability in Json-smart Affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2024-57699)

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerability Vulnerability Details CVEID:CVE-2024-57699 DESCRIPTION: A security issue was found in Netplex Json-smart 2.5.0 through 2.5.1. When loading a specially crafted JSON input, containing a large...

aws-smithy-json: aws-smithy-json: Denial of Service via uncontrolled recursion with deeply nested JSON

A flaw was found in aws-smithy-json. This vulnerability allows a remote, unauthenticated attacker to cause a denial of service DoS in smithy-rs generated servers. By sending a small HTTP request containing deeply nested JSON, the attacker can trigger uncontrolled recursion in the aws-smithy-json...

Important: Red Hat Security Advisory: goose bug fix and enhancement update

An update for goose is now available for Red Hat Enterprise Linux 9. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Security Fixes: goose: aws-smithy-json: Denial of Service via uncontrolled...