CVE-2026-23528 (GCVE-0-2026-23528)
Vulnerability from cvelistv5 – Published: 2026-01-16 16:44 – Updated: 2026-01-16 17:21
VLAI
EPSS
VEX
Title
Dask distributed Vulnerable to Remote Code Execution via Jupyter Proxy and Dashboard
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-16 17:21 UTC
CWE
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/dask/distributed/security/advi… | x_refsource_CONFIRM |
| https://github.com/dask/distributed/commit/ab7209… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| dask | distributed |
Affected:
< 2026.1.0
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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