CVE catalog
CVE-2020-26232
jupyter-server: CVE-2020-26232
- Severity
- Medium · CVSS 5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.00% · Oct 25, 2026
Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.
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 | fixed |
| Opensuse | python-jupyter-server | tumbleweed | 2.20.0-1.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | jupyter-server | source | sid | 1.0.7-1 | not yet assigned | Not reported | Not reported |
| Debian | jupyter-server | source | forky | 1.0.7-1 | not yet assigned | Not reported | Not reported |
| Debian | jupyter-server | source | trixie | 1.0.7-1 | not yet assigned | Not reported | Not reported |
| Debian | jupyter-server | source | bookworm | 1.0.7-1 | not yet assigned | Not reported | Not reported |
| Opensuse | python-jupyter-server | rpm | tumbleweed | 2.20.0-1.3 | Not reported | OPENSUSE-SU-2026:12012-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [python313-jupyter-server]Unknown
Source package: [python-jupyter-server]
Details (1)
2.20.0-1.3· noarch · tumbleweedUnknown · Fixed:
2.20.0-1.3Version impact unknown
dsa · python-jupyter-server · opensuse · tumbleweed
- [python313-jupyter-server-test]Unknown
Source package: [python-jupyter-server]
Details (1)
2.20.0-1.3· noarch · tumbleweedUnknown · Fixed:
2.20.0-1.3Version impact unknown
dsa · python-jupyter-server · opensuse · tumbleweed
- [python314-jupyter-server]Unknown
Source package: [python-jupyter-server]
Details (1)
2.20.0-1.3· noarch · tumbleweedUnknown · Fixed:
2.20.0-1.3Version impact unknown
dsa · python-jupyter-server · opensuse · tumbleweed
- [python314-jupyter-server-test]Unknown
Source package: [python-jupyter-server]
Details (1)
2.20.0-1.3· noarch · tumbleweedUnknown · Fixed:
2.20.0-1.3Version impact unknown
dsa · python-jupyter-server · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [jupyter-server]Fixed
Details (2)
1.23.3-1· all · bookwormFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · bookworm; dsa · jupyter-server · debian · 12
1.23.3-1· all · bookwormFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · bookworm; dsa · jupyter-server · debian · 12
- [python3-jupyter-server]Fixed
Source package: [jupyter-server]
Details (2)
1.23.3-1· all · bookwormFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · bookworm; dsa · jupyter-server · debian · 12
1.23.3-1· all · bookwormFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · bookworm; dsa · jupyter-server · debian · 12
[Debian 13 (Trixie)]
- [jupyter-server]Fixed
Details (2)
2.15.0-1· all · trixieFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · 13
2.15.0-1· all · trixieFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · 13
- [python3-jupyter-server]Fixed
Source package: [jupyter-server]
Details (2)
2.15.0-1· all · trixieFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · 13
2.15.0-1· all · trixieFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · 13
- [python-jupyter-server-doc]Fixed
Source package: [jupyter-server]
Details (2)
2.15.0-1· all · trixieFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · 13
2.15.0-1· all · trixieFixed · Fixed:
1.0.7-1dsa · jupyter-server · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_11233-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-26232]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:12012-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-26232]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]