pypi package report

Is pyyaml safe?

4 known vulnerabilities, worst severity CRITICAL.

// reach

0 direct dependencies

none carry a known advisory

    1,725 packages depend on it

    an advisory here reaches each of them

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

    4 published models carry an advisory from this package

    0 pin a version the advisory is confirmed against; the rest declare it without a version.

    akhaliq/MOSS-Image-Edit-HQCRITICALnot pinned
    inclusionAI/Realtime-VenusCRITICALnot pinned

    4 published models

    0 declared · 4 observed · 0 inferred

    ModelEvidence
    akhaliq/MOSS-Image-Edit-HQobserved
    inclusionAI/Realtime-Venusobserved
    Create a free accountto see all 2 models and per-model risk

    4 published AI models are associated with this package: 0 name it in a requirements or pyproject file, 4 load it or import it directly, and 0 are inferred from the runtime stack their declared library pulls in. Only 0 state a version requirement, so this is not a count of affected models.


    cvss
    9.8
    critical

    CVSS v3.1 base score out of 10

    epss
    5.4%
    medium

    chance of exploitation in 30 days, 93rd percentile of all CVEs

    xyz score
    6.1
    medium

    CyberXYZ composite out of 10

    fig. 01 — GHSA-6757-jp84-gxfx, the advisory selected below

    // 4 advisories

    GHSA-6757-jp84-gxfx

    CRITICALGitHub ratingCVE-2020-1747

    A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.

    // cvss v3.1 vector

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

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

    Checked 2026-11-06 at 21:15 UTC. The most recent advisory here was published 2021-04-20. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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