GHSA-hjxc-462x-x77j

    Dashboard / Vulnerabilities / GHSA-hjxc-462x-x77j

    GHSA-hjxc-462x-x77j

    Published: 9 Feb 2022Last Modified: 10 Sept 2026

    Summary: TOCTOU Race Condition in Yarn

    Details: The package integrity validation in yarn < 1.19.0 contains a TOCTOU vulnerability where the hash is computed before writing a package to cache. It's not computed again when reading from the cache. This may lead to a cache pollution attack. This issue is fixed in 1.19.0.

    References: https://nvd.nist.gov/vuln/detail/CVE-2019-15608, https://github.com/yarnpkg/yarn/commit/0474b8c66a8ea298f5e4dedc67b2de464297ad1c, https://hackerone.com/reports/703138, https://github.com/yarnpkg/yarn/blob/master/CHANGELOG.md#1190

    Affected packages

    Package

    Name: yarn

    Purl: pkg:npm/yarn

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.19.0

    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-hjxc-462x-x77j | CVE-DB