Detections
Analytics

Chainguard: jupyterhub-k8s-singleuser-sample: security update to 4.4.4-r3

low Tenable Cloud Security Plugin ID 477966

Description

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

 - Tornado is a Python web framework and asynchronous networking library. Prior to 6.6,
 tornado.web.RedirectHandler URL templates can place regex-capture substitutions where crafted request
 paths change the redirect scheme or network location. Affected placements include substitutions at the
 start of a path, directly after a fixed host, or at the beginning of the template, including protocol-
 relative, absolute, backslash, encoded, host-extension, and user-info variants interpreted by browsers as
 attacker-controlled destinations. Static templates and substitutions after a fixed host followed by a
 slash are not affected. An attacker can use the resulting open redirect on the application's domain for
 phishing. This issue is fixed in version 6.6. (CVE-2026-116578)

Solution

Update the jupyterhub-k8s-singleuser-sample library and its related packages to version 4.4.4-r3 or later.

Plugin Details

Severity: Low

ID: 477966

Version: Revision 1.1

Type: Local

Published: 10/30/2026

Updated: 10/30/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 10.33

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-116578

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

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/26/2026

Reference Information

CVE: CVE-2026-116578