CVE-2022-21803

    Dashboard / Vulnerabilities / CVE-2022-21803

    CVE-2022-21803

    Published: 12 Apr 2022Last Modified: 12 Aug 2026

    Summary: Prototype Pollution

    Details: This affects the package nconf before 0.11.4. When using the memory engine, it is possible to store a nested JSON representation of the configuration. The .set() function, that is responsible for setting the configuration properties, is vulnerable to Prototype Pollution. By providing a crafted property, it is possible to modify the properties on the Object.prototype.

    References: https://github.com/indexzero/nconf/releases/tag/v0.11.4, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21803.json, https://nvd.nist.gov/vuln/detail/CVE-2022-21803, https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2632450, https://snyk.io/vuln/SNYK-JS-NCONF-2395478, https://github.com/indexzero/nconf/pull/397

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -f25feb2913fc21a5d80039f6213c2d9ae906ec29

    Affected versions

    v0.11.3
    v0.11.2
    v0.11.1
    v0.11.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-21803 | CVE-DB