CVE-2026-77415

JSONata (a JSON query and transformation language) is vulnerable to arbitrary code execution in versions prior to 1.8.8 and 2.2.1 . An attacker can craft JSONata expressions that chain multiple object-integrity weaknesses—overwriting $clone, exposing internal functions via $merge.*, replacing pro...

GHSA-R5PQ-6CHH-J3XP Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter

Summary An unauthenticated POST to any OpenAPI-validated endpoint, including the anonymous POST /edge/validate and POST /edge/issue-token, crashes the entire Unleash server with one request body of deeply-nested JSON. When request-body validation fails, Unleash builds the error message by calling...

Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter

Summary An unauthenticated POST to any OpenAPI-validated endpoint, including the anonymous POST /edge/validate and POST /edge/issue-token, crashes the entire Unleash server with one request body of deeply-nested JSON. When request-body validation fails, Unleash builds the error message by calling...

CVE-2026-67217

A flaw was found in cJSON. The library applies RFC 6902 JSON Patch operations non-atomically. A remote attacker, by supplying a specially crafted patch document e.g., a 'replace' operation missing its value or a 'move' operation with an unresolved destination, can cause the existing target data t...

CVE-2026-67215

A flaw was found in cJSON. A remote attacker can exploit this vulnerability by applying a specially crafted JSON Patch document that causes uncontrolled recursion, leading to stack exhaustion. This can result in a denial of service DoS by crashing the application. Mitigation To reduce the risk of...

EUVD-2026-64041

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding...

CVE-2026-63462 Unleash: Unauthenticated single-request DoS via OpenAPI validation error formatter

Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding...

BIT-DISCOURSE-2026-53960 Discourse: Hidden first-post excerpt is emitted in Q&A schema JSON-LD

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, hidden or otherwise unviewable first-post content was leaked as an excerpt in the publicly-served Q&A QAPage JSON-LD structured data, exposing it to any unauthenticated visitor and to search-engi...

WordPress JSON Options plugin <= 0.0.4 - Unauthenticated Arbitrary Options Update vulnerability

Unauthenticated Arbitrary Options Update vulnerability discovered by Khaled Alenazi Nxploited in WordPress Plugin JSON Options versions = 0.0.4...

Exploit for SQL Injection in Sequelizejs Sequelize

CVE-2026-30951 Sequelize JSON Cast SQL Injection ★ CVE-2026...

PT-2026-79845

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, hidden or otherwise unviewable first-post content was leaked as an excerpt in the publicly-served Q&A QAPage JSON-LD structured data, exposing it to any unauthenticated visitor and to search-engi...

Apache Struts 6.x < 6.11.0 / 7.x < 7.3.0 Multiple Vulnerabilities (S2-072) (S2-074)

The version of Apache Struts installed on the remote host is 6.0.0 prior to 6.11.0, or 7.0.0 prior to 7.3.0. It is, therefore, affected by multiple denial of service vulnerabilities, as referenced in the S2-072 and S2-074 advisories: - When an application is configured to populate actions from a...

Kibana 9.2.x < 9.4.5 Incorrect Authorization (ESA-2026-82)

The version of Kibana installed on the remote host is 9.2.x prior to 9.4.5. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-82 advisory. - Kibana Agent Builder A2A JSON-RPC API endpoint derives the identifier of a stored conversation from a user-supplied input, and the...

PT-2026-79422

Name of the Vulnerable Software and Affected Versions Unleash versions prior to 7.5.2 Unleash versions prior to 7.6.5 Unleash versions prior to 8.0.2 Description An unauthenticated attacker can cause a complete service outage by sending a deeply nested JSON value approximately 10 KB to...

Apache Struts < 7.3.0 Multiple Vulnerabilities (S2-070) (S2-071)

The version of Apache Struts installed on the remote host is 7.2.1. It is, therefore, affected by multiple vulnerabilities in the JSON plugin, as referenced in the S2-070 and S2-071 advisories: - A component of the JSON plugin that holds per-request parsing state could be shared between concurren...

USN-8657-1: Vim vulnerabilities

It was discovered that Vim incorrectly handled memory when decoding certain JSON input. An attacker could possibly use this issue to cause Vim to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. CVE-2026-73071 Yazan Balawn...

CVE-2026-18420

Improper input validation in the Time Series Visual Builder TSVB plugin in OpenSearch Dashboards allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This issue is a form of prototype pollution that enabl...

CVE-2026-18420 RCE via Prototype Pollution in OpenSearch Dashboards

Improper input validation in the Time Series Visual Builder TSVB plugin in OpenSearch Dashboards allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This issue is a form of prototype pollution that enabl...

CVE-2026-18420 RCE via Prototype Pollution in OpenSearch Dashboards

Improper input validation in the Time Series Visual Builder TSVB plugin in OpenSearch Dashboards allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This issue is a form of prototype pollution that enabl...

RLSA-2026:56007 Important: mysql8.4 security, bug fix, and enhancement update

MySQL is a multi-user, multi-threaded SQL database server. MySQL is a client/server implementation consisting of a server daemon mysqld and many different client programs and libraries. The base package contains the standard MySQL client programs and generic MySQL files. Security Fixes: mysql:...