Cross-site Scripting (XSS) Affecting dask-kubernetes package, versions <2025.7.0-r6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CHAINGUARDLATEST-DASKKUBERNETES-15050213
- published22 Jan 2026
- disclosed16 Jan 2026
Introduced: 16 Jan 2026
CVE-2026-23528 (opens in a new tab)How to fix?
Upgrade Chainguard dask-kubernetes to version 2025.7.0-r6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dask-kubernetes package and not the dask-kubernetes package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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.