An issue was discovered in ajv.validate() in Ajv (aka Another JSON Schema Validator) 6.12.2. A carefully crafted JSON schema could be provided that allows execution of other code by prototype pollution. (While untrusted schemas are recommended against, the worst case of an untrusted schema should be a denial of service, not execution of code.)
CVE-2020-15366 - Medium Severity Vulnerability
Another JSON Schema Validator
Library home page: https://registry.npmjs.org/ajv/-/ajv-6.12.2.tgz
Path to dependency file: /node_modules/ajv/package.json
Path to vulnerable library: /node_modules/ajv/package.json
Dependency Hierarchy: - jest-24.9.0.tgz (Root Library) - jest-cli-24.9.0.tgz - jest-config-24.9.0.tgz - jest-environment-jsdom-24.9.0.tgz - jsdom-11.12.0.tgz - request-2.88.2.tgz - har-validator-5.1.3.tgz - :x: **ajv-6.12.2.tgz** (Vulnerable Library)
Found in HEAD commit: 0c22b39b4f64e2bf88c2b59e4e09bc0b140c91e6
Found in base branch: develop
An issue was discovered in ajv.validate() in Ajv (aka Another JSON Schema Validator) 6.12.2. A carefully crafted JSON schema could be provided that allows execution of other code by prototype pollution. (While untrusted schemas are recommended against, the worst case of an untrusted schema should be a denial of service, not execution of code.)
Publish Date: 2020-07-15
URL: CVE-2020-15366
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: Low - Availability Impact: Low
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2020-07-15
Fix Resolution (ajv): 6.12.3
Direct dependency fix Resolution (jest): 25.0.0