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
ajv-5.5.2.tgz
Another JSON Schema Validator
Library home page: https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz
Dependency Hierarchy: - node-sass-4.9.3.tgz (Root Library) - request-2.87.0.tgz - har-validator-5.0.3.tgz - :x: **ajv-5.5.2.tgz** (Vulnerable Library)
ajv-6.5.4.tgz
Another JSON Schema Validator
Library home page: https://registry.npmjs.org/ajv/-/ajv-6.5.4.tgz
Dependency Hierarchy: - videojs-standard-8.0.2.tgz (Root Library) - eslint-5.9.0.tgz - :x: **ajv-6.5.4.tgz** (Vulnerable Library)
Found in HEAD commit: fbdf8372a96f7f26965d33fedec5089038e609dc
Found in base branch: master
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
Origin: https://github.com/ajv-validator/ajv/releases/tag/v6.12.3
Release Date: 2020-07-15
Fix Resolution (ajv): 6.12.3
Direct dependency fix Resolution (node-sass): 4.9.4
Fix Resolution (ajv): 6.12.3
Direct dependency fix Resolution (videojs-standard): 8.0.3