pypi package report

Is ecdsa safe?

4 known vulnerabilities, worst severity CRITICAL.

// reach

3 direct dependencies

none carry a known advisory

    22 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

    No published models are known to use this package.

    cvss
    9.1
    critical

    CVSS v3.1 base score out of 10

    epss
    1.5%
    medium

    chance of exploitation in 30 days, 75th percentile of all CVEs

    xyz score
    4.9
    medium

    CyberXYZ composite out of 10

    fig. 01 — GHSA-8qxj-f9rh-9fg2, the advisory selected below

    // 4 advisories

    GHSA-8qxj-f9rh-9fg2

    CRITICALGitHub ratingCVE-2019-14859

    A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.

    // cvss v3.1 vector

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

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

    Checked 2026-11-06 at 22:30 UTC. The most recent advisory here was published 2026-03-27. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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