npm package report

Is fflate safe?

fflate (npm) has 1 known vulnerability, the worst rated MODERATE. Upgrade to 0.7.5 or later to clear it. No malicious-package signal is recorded.

// reach

0 direct dependencies

none carry a known advisory

    38 packages depend on it

    an advisory here reaches each of them

    • docx
    • fast-png
    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
    7.5
    high

    CVSS v3.1 base score out of 10; GitHub rates it MODERATE

    epss
    0.28%
    low

    chance of exploitation in 30 days, 21st percentile of all CVEs

    xyz score
    not scored

    CyberXYZ composite out of 10

    fig. 01 — GHSA-px8p-9vwx-vf98, the advisory selected below

    // 1 advisories

    fflate through 0.8.2 is vulnerable to denial of service via an infinite loop in unzipSync().

    Full advisory text at GitHub advisory or NVD.

    // cvss v3.1 vector

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

    Attack vector
    Network
    Attack complexity
    Low
    Privileges required
    None
    User interaction
    None
    Scope
    Unchanged
    Confidentiality
    None
    Integrity
    None
    Availability
    High
    // questions
    Is fflate safe to install?

    CyberXYZ does not call a package safe in absolute terms. It records 1 known vulnerability for fflate (npm), the worst rated MODERATE, and no malicious-package signal. Whether it is acceptable depends on the version you run.

    Does fflate have known vulnerabilities?

    Yes. CyberXYZ records 1 known vulnerability for fflate (npm), the worst rated MODERATE. They are GHSA-px8p-9vwx-vf98.

    Which version of fflate should I use?

    0.7.5 or later clears every advisory recorded for fflate (npm). Check the release you pick before installing it.

    How do I check fflate before installing?

    Search fflate in CyberXYZ Check at https://cyberxyz.io/check?q=fflate. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.


    Checked 2026-11-14 at 11:04 UTC. The most recent advisory here was published 2026-07-22. Updated continuously from NVD, GHSA, OSV and CNA feeds.

    Think a verdict here is wrong? Tell us — we respond within 2 business days.