CVE-2023-40170

    Dashboard / Vulnerabilities / CVE-2023-40170

    CVE-2023-40170

    Published: 28 Aug 2023Last Modified: 12 Aug 2026

    Summary: cross-site inclusion (XSSI) of files in jupyter-server

    Details: jupyter-server is the backend for Jupyter web applications. Improper cross-site credential checks on `/files/` URLs could allow exposure of certain file contents, or accessing files when opening untrusted files via "Open image in new tab". This issue has been addressed in commit `87a49272728` which has been included in release `2.7.2`. Users are advised to upgrade. Users unable to upgrade may use the lower performance `--ContentsManager.files_handler_class=jupyter_server.files.handlers.FilesHandler`, which implements the correct checks.

    References: https://lists.fedoraproject.org/archives/list/[email protected]/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ/, https://lists.fedoraproject.org/archives/list/[email protected]/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40170.json, https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-64x5-55rw-9974, https://nvd.nist.gov/vuln/detail/CVE-2023-40170, https://github.com/jupyter-server/jupyter_server/commit/87a4927272819f0b1cae1afa4c8c86ee2da002fd

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -5a8a47f5ba674d0f758a91cca08e2a9c6eacf224

    Affected versions

    v2.7.1
    v2.7.0

    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
    CVE-2023-40170 | CVE-DB