CVE catalog

CVE-2023-39968

jupyter-server: CVE-2023-39968

Severity: Medium · CVSS 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Published: Aug 28, 2023, 9:15:07 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.68% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	jupyter-server	sid	`2.20.0-3`	fixed
Debian	jupyter-server	forky	`2.20.0-3`	fixed
Debian	jupyter-server	trixie	`2.15.0-1`	fixed
Debian	jupyter-server	bookworm	`1.23.3-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	jupyter-server	source	sid	`2.14.2-1`	not yet assigned	Not reported	[1057739]
Debian	jupyter-server	source	forky	`2.14.2-1`	not yet assigned	Not reported	[1057739]
Debian	jupyter-server	source	trixie	`2.14.2-1`	not yet assigned	Not reported	[1057739]
Debian	jupyter-server	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1057739]

[Debian bug #1057739]

Notes

[bookworm] jupyter-server: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]