npm package report

Is yauzl safe?

1 known vulnerability, worst severity MODERATE.

// reach

0 direct dependencies

none carry a known advisory

    49 packages depend on it

    an advisory here reaches each of them

    Create a free accountfor every dependency path, dependent and what to upgrade
    // ai model usage

    Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

    cvss
    5.3
    medium

    CVSS v3.1 base score out of 10

    epss
    0.52%
    medium

    chance of exploitation in 30 days, 44th percentile of all CVEs

    xyz score
    not scored

    CyberXYZ composite out of 10

    fig. 01 — GHSA-gmq8-994r-jv83, the advisory selected below

    // 1 advisories

    GHSA-gmq8-994r-jv83

    MODERATEGitHub ratingCVE-2026-31988

    yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor < data.length + 4 instead of cursor + 4 <= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.

    // cvss v3.1 vector

    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

    Attack vector
    Network
    Attack complexity
    Low
    Privileges required
    None
    User interaction
    None
    Scope
    Unchanged
    Confidentiality
    None
    Integrity
    None
    Availability
    Low

    Checked 2026-11-06 at 20:17 UTC. The most recent advisory here was published 2026-03-12. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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