CVE-2026-23528
CVE-2026-23528 · Dask distributed Vulnerable to Remote Code Execution via Jupyter Proxy and Dashboard
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Dask distributed is a distributed task scheduler for Dask. Prior to 2026.1.0, when Jupyter Lab, jupyter-server-proxy, and Dask distributed are all run together, it is possible to craft a URL which will result in code being executed by Jupyter due to a cross-side-scripting (XSS) bug in the Dask dashboard. It is possible for attackers to craft a phishing URL that assumes Jupyter Lab and Dask may be running on localhost and using default ports. If a user clicks on the malicious link it will open an error page in the Dask Dashboard via the Jupyter Lab proxy which will cause code to be executed by the default Jupyter Python kernel. This vulnerability is fixed in 2026.1.0.
CVSS 5.3 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
distributed
- Versions
- < 2026.1.0: Affected
No fix published
dask.distributed Debian:12
- Versions
- 2022.12.1+ds.1-3
- 2023.12.1+ds-1
- 2023.12.1+ds-2
- 2023.12.1+ds-3
- 2023.12.1+ds-4
- 2023.8.0+ds.1-1
- 2024.12.1+ds-1
- 2024.12.1+ds-2
- 2024.12.1+ds-3
- 2024.5.2+ds.1-1
- 2024.5.2+ds.1-2
- 2024.5.2+ds.1-3
- 2024.5.2+ds.1-4
- 2024.5.2+ds.1-5
- 2024.5.2+ds.1-6
- 2024.5.2+ds.1-7
- 2024.5.2+ds.1-8
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Debian:13
- Versions
- 2024.12.1+ds-1
- 2024.12.1+ds-2
- 2024.12.1+ds-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Debian:14
- Versions
- 2024.12.1+ds-1
- 2024.12.1+ds-2
- Affected ranges
- ECOSYSTEM: < 2024.12.1+ds-3
Update to 2024.12.1+ds-3
distributed PyPI
- Versions
- 1.0.0
- 1.0.1
- 1.0.2
- 1.1.0
- 1.10.0
- 1.10.1
- 1.10.2
- 1.11.0
- 1.11.1
- 1.11.2
- 1.11.3
- 1.12.0
- 1.12.1
- 1.12.2
- 1.13.0
- 1.13.1
- 1.13.2
- 1.13.3
- 1.14.0
- 1.14.1
- 1.14.3
- 1.15.0
- 1.15.0rc1
- 1.15.1
- 1.15.2
- 1.16.0
- 1.16.1
- 1.16.2
- 1.16.3
- 1.17.0
- 1.17.1
- 1.18.0
- 1.18.1
- 1.18.2
- 1.18.3
- 1.19.0
- 1.19.1
- 1.19.2
- 1.19.3
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.3
- 1.20.0
- 1.20.1
- 1.20.2
- 1.21.0
- 1.21.1
- 1.21.2
- 1.21.3
- 1.21.4
- 1.21.5
- 1.21.6
- 1.21.7
- 1.21.8
- 1.22.0
- 1.22.1
- 1.23.0
- 1.23.1
- 1.23.2
- 1.23.3
- 1.24.0
- 1.24.1
- 1.24.2
- 1.25.0
- 1.25.1
- 1.25.2
- 1.25.3
- 1.26.0
- 1.26.1
- 1.27.0
- 1.27.1
- 1.28.0
- 1.28.1
- 1.3.0
- 1.3.1
- 1.3.2
- 1.3.3
- 1.4.0
- 1.5.0
- 1.6.0
- 1.6.1
- 1.7.0
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.8.0
- 1.8.1
- 1.9.0
- 1.9.1
- 1.9.2
- 1.9.3
- 1.9.4
- 1.9.5
- 2.0.1
- 2.1.0
- 2.10.0
- 2.11.0
- 2.12.0
- 2.13.0
- 2.14.0
- 2.15.0
- 2.15.1
- 2.15.2
- 2.16.0
- 2.17.0
- 2.18.0
- 2.19.0
- 2.2.0
- 2.20.0
- 2.21.0
- 2.22.0
- 2.23.0
- 2.24.0
- 2.25.0
- 2.26.0
- 2.27.0
- 2.28.0
- 2.29.0
- 2.3.0
- 2.3.1
- 2.3.2
- 2.30.0
- 2.30.1
- 2.4.0
- 2.5.0
- 2.5.1
- 2.5.2
- 2.6.0
- 2.7.0
- 2.8.0
- 2.8.1
- 2.9.0
- 2.9.1
- 2.9.2
- 2.9.3
- 2020.12.0
- 2021.1.0
- 2021.1.1
- 2021.10.0
- 2021.11.0
- 2021.11.1
- 2021.11.2
- 2021.12.0
- 2021.2.0
- 2021.3.0
- 2021.3.1
- 2021.4.0
- 2021.4.1
- 2021.5.0
- 2021.5.1
- 2021.6.0
- 2021.6.1
- 2021.6.2
- 2021.7.0
- 2021.7.1
- 2021.7.2
- 2021.8.0
- 2021.8.1
- 2021.9.0
- 2021.9.1
- 2022.1.0
- 2022.1.1
- 2022.10.0
- 2022.10.1
- 2022.10.2
- 2022.11.0
- 2022.11.1
- 2022.12.0
- 2022.12.1
- 2022.2.0
- 2022.2.1
- 2022.3.0
- 2022.4.0
- 2022.4.1
- 2022.4.2
- 2022.5.0
- 2022.5.1
- 2022.5.2
- 2022.6.0
- 2022.6.1
- 2022.7.0
- 2022.7.1
- 2022.8.0
- 2022.8.1
- 2022.9.0
- 2022.9.1
- 2022.9.2
- 2023.1.0
- 2023.1.1
- 2023.10.0
- 2023.10.1
- 2023.11.0
- 2023.12.0
- 2023.12.1
- 2023.2.0
- 2023.2.1
- 2023.3.0
- 2023.3.1
- 2023.3.2
- 2023.3.2.1
- 2023.4.0
- 2023.4.1
- 2023.5.0
- 2023.5.1
- 2023.6.0
- 2023.6.1
- 2023.7.0
- 2023.7.1
- 2023.8.0
- 2023.8.1
- 2023.9.0
- 2023.9.1
- 2023.9.2
- 2023.9.3
- 2024.1.0
- 2024.1.1
- 2024.10.0
- 2024.11.0
- 2024.11.1
- 2024.11.2
- 2024.12.0
- 2024.12.1
- 2024.2.0
- 2024.2.1
- 2024.3.0
- 2024.3.1
- 2024.4.0
- 2024.4.1
- 2024.4.2
- 2024.5.0
- 2024.5.1
- 2024.5.2
- 2024.6.0
- 2024.6.1
- 2024.6.2
- 2024.7.0
- 2024.7.1
- 2024.8.0
- 2024.8.1
- 2024.8.2
- 2024.9.0
- 2024.9.1
- 2025.1.0
- 2025.10.0
- 2025.11.0
- 2025.12.0
- 2025.2.0
- 2025.3.0
- 2025.3.1
- 2025.4.0
- 2025.4.1
- 2025.5.0
- 2025.5.1
- 2025.7.0
- 2025.9.0
- 2025.9.1
- 2025.9.2
- 2025.9.3
- Affected ranges
- ECOSYSTEM: < 2026.1.0
Update to 2026.1.0
distributed PyPI
- Versions
- 1.0.0
- 1.0.1
- 1.0.2
- 1.1.0
- 1.10.0
- 1.10.1
- 1.10.2
- 1.11.0
- 1.11.1
- 1.11.2
- 1.11.3
- 1.12.0
- 1.12.1
- 1.12.2
- 1.13.0
- 1.13.1
- 1.13.2
- 1.13.3
- 1.14.0
- 1.14.1
- 1.14.3
- 1.15.0
- 1.15.0rc1
- 1.15.1
- 1.15.2
- 1.16.0
- 1.16.1
- 1.16.2
- 1.16.3
- 1.17.0
- 1.17.1
- 1.18.0
- 1.18.1
- 1.18.2
- 1.18.3
- 1.19.0
- 1.19.1
- 1.19.2
- 1.19.3
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.3
- 1.20.0
- 1.20.1
- 1.20.2
- 1.21.0
- 1.21.1
- 1.21.2
- 1.21.3
- 1.21.4
- 1.21.5
- 1.21.6
- 1.21.7
- 1.21.8
- 1.22.0
- 1.22.1
- 1.23.0
- 1.23.1
- 1.23.2
- 1.23.3
- 1.24.0
- 1.24.1
- 1.24.2
- 1.25.0
- 1.25.1
- 1.25.2
- 1.25.3
- 1.26.0
- 1.26.1
- 1.27.0
- 1.27.1
- 1.28.0
- 1.28.1
- 1.3.0
- 1.3.1
- 1.3.2
- 1.3.3
- 1.4.0
- 1.5.0
- 1.6.0
- 1.6.1
- 1.7.0
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.8.0
- 1.8.1
- 1.9.0
- 1.9.1
- 1.9.2
- 1.9.3
- 1.9.4
- 1.9.5
- 2.0.1
- 2.1.0
- 2.10.0
- 2.11.0
- 2.12.0
- 2.13.0
- 2.14.0
- 2.15.0
- 2.15.1
- 2.15.2
- 2.16.0
- 2.17.0
- 2.18.0
- 2.19.0
- 2.2.0
- 2.20.0
- 2.21.0
- 2.22.0
- 2.23.0
- 2.24.0
- 2.25.0
- 2.26.0
- 2.27.0
- 2.28.0
- 2.29.0
- 2.3.0
- 2.3.1
- 2.3.2
- 2.30.0
- 2.30.1
- 2.4.0
- 2.5.0
- 2.5.1
- 2.5.2
- 2.6.0
- 2.7.0
- 2.8.0
- 2.8.1
- 2.9.0
- 2.9.1
- 2.9.2
- 2.9.3
- 2020.12.0
- 2021.1.0
- 2021.1.1
- 2021.10.0
- 2021.11.0
- 2021.11.1
- 2021.11.2
- 2021.12.0
- 2021.2.0
- 2021.3.0
- 2021.3.1
- 2021.4.0
- 2021.4.1
- 2021.5.0
- 2021.5.1
- 2021.6.0
- 2021.6.1
- 2021.6.2
- 2021.7.0
- 2021.7.1
- 2021.7.2
- 2021.8.0
- 2021.8.1
- 2021.9.0
- 2021.9.1
- 2022.1.0
- 2022.1.1
- 2022.10.0
- 2022.10.1
- 2022.10.2
- 2022.11.0
- 2022.11.1
- 2022.12.0
- 2022.12.1
- 2022.2.0
- 2022.2.1
- 2022.3.0
- 2022.4.0
- 2022.4.1
- 2022.4.2
- 2022.5.0
- 2022.5.1
- 2022.5.2
- 2022.6.0
- 2022.6.1
- 2022.7.0
- 2022.7.1
- 2022.8.0
- 2022.8.1
- 2022.9.0
- 2022.9.1
- 2022.9.2
- 2023.1.0
- 2023.1.1
- 2023.10.0
- 2023.10.1
- 2023.11.0
- 2023.12.0
- 2023.12.1
- 2023.2.0
- 2023.2.1
- 2023.3.0
- 2023.3.1
- 2023.3.2
- 2023.3.2.1
- 2023.4.0
- 2023.4.1
- 2023.5.0
- 2023.5.1
- 2023.6.0
- 2023.6.1
- 2023.7.0
- 2023.7.1
- 2023.8.0
- 2023.8.1
- 2023.9.0
- 2023.9.1
- 2023.9.2
- 2023.9.3
- 2024.1.0
- 2024.1.1
- 2024.10.0
- 2024.11.0
- 2024.11.1
- 2024.11.2
- 2024.12.0
- 2024.12.1
- 2024.2.0
- 2024.2.1
- 2024.3.0
- 2024.3.1
- 2024.4.0
- 2024.4.1
- 2024.4.2
- 2024.5.0
- 2024.5.1
- 2024.5.2
- 2024.6.0
- 2024.6.1
- 2024.6.2
- 2024.7.0
- 2024.7.1
- 2024.8.0
- 2024.8.1
- 2024.8.2
- 2024.9.0
- 2024.9.1
- 2025.1.0
- 2025.10.0
- 2025.11.0
- 2025.12.0
- 2025.2.0
- 2025.3.0
- 2025.3.1
- 2025.4.0
- 2025.4.1
- 2025.5.0
- 2025.5.1
- 2025.7.0
- 2025.9.0
- 2025.9.1
- 2025.9.2
- Affected ranges
- ECOSYSTEM: < 2026.1.0
Update to 2026.1.0
dask.distributed Ubuntu:18.04:LTS
- Versions
- 1.18.0+ds.1-1
- 1.20.2+ds.1-1
- 1.20.2+ds.1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Ubuntu:20.04:LTS
- Versions
- 1.25.0+ds.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Ubuntu:22.04:LTS
- Versions
- 2021.01.0+ds.1-2.1
- 2021.09.1+ds.1-3
- 2022.01.0+ds.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Ubuntu:24.04:LTS
- Versions
- 2023.8.0+ds.1-1
- 2023.12.1+ds-3
- 2023.12.1+ds-4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Ubuntu:25.10
- Versions
- 2024.12.1+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Ubuntu:26.10
- Versions
- 2024.12.1+ds-1
- 2024.12.1+ds-2
- 2024.12.1+ds-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dask.distributed Ubuntu:26.04:LTS
- Versions
- 2024.12.1+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published