GHSA-33f9-j839-rf8h

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    GHSA-33f9-j839-rf8h

    Published: 2 Sept 2021Last Modified: 14 Jan 2025

    Summary: Prototype Pollution in immer

    Details: This affects the package immer before 9.0.6. A type confusion vulnerability can lead to a bypass of CVE-2020-28477 when the user-provided keys used in the path parameter are arrays. In particular, this bypass is possible because the condition `(p === "__proto__" || p === "constructor")` in `applyPatches_` returns false if `p` is `['__proto__']` (or `['constructor']`). The `===` operator (strict equality operator) returns false if the operands have different type.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-23436, https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237, https://github.com/immerjs/immer, https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266, https://snyk.io/vuln/SNYK-JS-IMMER-1540542

    Affected packages

    Package

    Name: immer

    Purl: pkg:npm/immer

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 7.0.0
    Fixed -9.0.6

    Affected versions

    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
    GHSA-33f9-j839-rf8h | CVE-DB