Detections
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SCA: security update for jupyter-server-proxy (GHSA-fvcq-4x64-hqxr)

medium Tenable Self-Hosted Container Security Plugin ID 414707

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Jupyter Server Proxy allows users to run arbitrary external processes alongside their notebook server and
 provide authenticated web access to them. Versions of 3.x prior to 3.2.4 and 4.x prior to 4.2.0 have a
 reflected cross-site scripting (XSS) issue. The `/proxy` endpoint accepts a `host` path segment in the
 format `/proxy/<host>`. When this endpoint is called with an invalid `host` value, `jupyter-server-proxy`
 replies with a response that includes the value of `host`, without sanitization [2]. A third-party actor
 can leverage this by sending a phishing link with an invalid `host` value containing custom JavaScript to
 a user. When the user clicks this phishing link, the browser renders the response of `GET /proxy/<host>`,
 which runs the custom JavaScript contained in `host` set by the actor. As any arbitrary JavaScript can be
 run after the user clicks on a phishing link, this issue permits extensive access to the user's JupyterLab
 instance for an actor. Patches are included in versions 4.2.0 and 3.2.4. As a workaround, server operators
 who are unable to upgrade can disable the `jupyter-server-proxy` extension. (CVE-2024-35225)

See Also

https://github.com/advisories/GHSA-fvcq-4x64-hqxr

Plugin Details

Severity: Medium

ID: 414707

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.14

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2024-35225

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2024

Vulnerability Publication Date: 6/11/2024

Reference Information

CVE: CVE-2024-35225