PYSEC-2026-386

    Dashboard / Vulnerabilities / PYSEC-2026-386

    PYSEC-2026-386

    Published: 29 Jun 2026Last Modified: 10 Sept 2026

    Summary: pytorch-lightning vulnerable to Arbitrary File Write via /v1/runs API endpoint

    Details: A vulnerability in the /v1/runs API endpoint of lightning-ai/pytorch-lightning v2.2.4 allows attackers to exploit path traversal when extracting tar.gz files. When the LightningApp is running with the plugin_server, attackers can deploy malicious tar.gz plugins that embed arbitrary files with path traversal vulnerabilities. This can result in arbitrary files being written to any directory in the victim's local file system, potentially leading to remote code execution.

    References: https://nvd.nist.gov/vuln/detail/CVE-2024-5980, https://github.com/Lightning-AI/pytorch-lightning/pull/20039, https://github.com/lightning-ai/pytorch-lightning/commit/330af381de88cff17515418a341cbc1f9f127f9a, https://github.com/Lightning-AI/pytorch-lightning/releases/tag/2.3.3, https://github.com/lightning-ai/pytorch-lightning, https://huntr.com/bounties/55a6ac6f-89c7-42ea-86f3-c6e93a2679f3, https://pypi.org/project/lightning, https://github.com/advisories/GHSA-mr7h-w2qc-ffc2

    Affected packages

    Package

    Name: lightning

    Purl: pkg:pypi/lightning

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.3.3

    Affected versions

    1.8.0
    1.8.0.post1
    1.8.0rc1
    1.8.0rc2
    1.8.1
    1.8.2
    1.8.3
    1.8.3.post0
    1.8.3.post1
    1.8.3.post2
    1.8.4
    1.8.4.post0
    1.8.5
    1.8.5.post0
    1.8.6

    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