PYSEC-2026-309

    Dashboard / Vulnerabilities / PYSEC-2026-309

    PYSEC-2026-309

    Published: 29 Jun 2026Last Modified: 1 Jul 2026

    Summary: ChainerRL Visualizer 0.1.1 vulnerable to Path Traversal via unsafe use of send_file function

    Details: The chainer/chainerrl-visualizer repository through 0.1.1 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.

    References: https://nvd.nist.gov/vuln/detail/CVE-2022-31573, https://github.com/github/securitylab/issues/669#issuecomment-1117265726, https://github.com/chainer/chainerrl-visualizer, https://pypi.org/project/chainerrl-visualizer, https://github.com/advisories/GHSA-687h-86vc-5x59

    Affected packages

    Package

    Name: chainerrl-visualizer

    Purl: pkg:pypi/chainerrl-visualizer

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.1.0
    0.1.1

    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
    PYSEC-2026-309 | CVE-DB