CVE Feed

    Dashboard / CVE / CVE-2023-39968

    CVE-2023-39968

    jupyter-server is the backend for Jupyter web applications. Open Redirect Vulnerability. Maliciously crafted login links to known Jupyter Servers can cause successful login or an already logged-in session to be redirected to arbitrary sites, which should be restricted to Jupyter Server-served URLs. This issue has been addressed in commit `29036259` which is included in release 2.7.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.

    Published:Aug 28, 2023
    Last Modified:Feb 13, 2025
    EPS:Aug 28, 2023
    EPSS Score:0.00395
    CVSS Score:4.3

    Affected Products

    Vendor
    Jupyter
    Product
    Jupyter Server

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-178 Cross-Site Flashing

    Related CVEs

    CVE-2026-6658 (CVSS 5.4) — A vulnerability in jupyter/nbconvert versions <= 7.17.0 allows for Cross-site Scripting (XSS) via unsanitized …
    CVE-2026-44727 (CVSS 9.3) — Jupyter Server is the backend for Jupyter web applications. Prior to 2.20, the nbconvert HTTP handlers in jupy…
    CVE-2026-6657 (CVSS 8.8) — A vulnerability in jupyter-server versions 1.12.0 through 2.17.0 allows an attacker to bypass CORS origin vali…
    CVE-2026-5422 (CVSS 8.1) — A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boun…
    CVE-2026-40934 (CVSS 7.6) — Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the secret used to…
    CVE-2026-40110 (CVSS 7.6) — Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the Origin header …
    CVE-2026-35397 (CVSS 7.6) — Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, a path traversal v…
    CVE-2025-61669 (CVSS 6.3) — Jupyter Server is the backend for Jupyter web applications. In jupyter_server versions through 2.17.0, the nex…
    CVE-2024-35178 (CVSS 7.5) — The Jupyter Server provides the backend for Jupyter web applications. Jupyter Server on Windows has a vulnerab…
    CVE-2023-49080 (CVSS 3.5) — The Jupyter Server provides the backend (i.e. the core services, APIs, and REST endpoints) for Jupyter web app…

    References

    https://github.com/jupyter-server/jupyter_server/commit/290362593b2ffb23c59f8114d76f77875de4b925
    https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-r726-vmfq-j9j3
    https://lists.fedoraproject.org/archives/list/[email protected]/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF/
    https://github.com/jupyter-server/jupyter_server/commit/290362593b2ffb23c59f8114d76f77875de4b925
    https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-r726-vmfq-j9j3
    https://lists.fedoraproject.org/archives/list/[email protected]/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF/

    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